Hi all, I have implemented the PDF Documentation Generation by following this documentation: PDF Document Generation | Mendix Documentation. I am now running into an issue where the Generation 'times out'. This only happens in our production/acceptance environment and works when running from Mendix Studio Pro. I believe I had read somewhere that certificates might be affecting the generation but I'm not sure. Here are the most recent logs for the issue. 2025-08-28 16:43:47.671 ERROR - DocumentGeneration: Timeout while waiting for document result for request 17fa3d06-6357-4326-bfd6-0ddae968307b2025-08-28 16:43:47.671 ERROR - Connector: An error has occurred while handling the request. [User 'tyron.corpuz' with session id '5b47d5ea-XXXX-XXXX-XXXX-XXXXXXXXea3e' and roles 'Administrator, Author']com.mendix.webui.WebUIException: Exception while executing runtime operation at com.mendix.webui.actions.client.RuntimeOperationAction.$anonfun$apply$3(RuntimeOperationAction.scala:60) Caused by: com.mendix.modules.microflowengine.MicroflowException: com.mendix.systemwideinterfaces.MendixRuntimeException: documentgeneration.implementation.exceptions.DocGenPollingException: Timeout while waiting for document result for request 17fa3d06-6357-4326-bfd6-0ddae968307b at CustomerHealthDashboard.ACT_Projects_GeneratePDF (JavaAction : 'Generate PDF from page') Advanced stacktrace: at com.mendix.modules.microflowengine.MicroflowUtil$.processException(MicroflowUtil.scala:73) Caused by: com.mendix.core.CoreRuntimeException: com.mendix.systemwideinterfaces.MendixRuntimeException: documentgeneration.implementation.exceptions.DocGenPollingException: Timeout while waiting for document result for request 17fa3d06-6357-4326-bfd6-0ddae968307b at com.mendix.basis.actionmanagement.ActionManager.executeSync(ActionManager.scala:125) Caused by: com.mendix.systemwideinterfaces.MendixRuntimeException: documentgeneration.implementation.exceptions.DocGenPollingException: Timeout while waiting for document result for request 17fa3d06-6357-4326-bfd6-0ddae968307b at com.mendix.util.classloading.Runner$.withContextClassLoader(Runner.scala:23) Caused by: documentgeneration.implementation.exceptions.DocGenPollingException: Timeout while waiting for document result for request 17fa3d06-6357-4326-bfd6-0ddae968307b at documentgeneration.implementation.RequestManager.waitForResult(RequestManager.java:45) at documentgeneration.implementation.DocumentGenerator.generate(DocumentGenerator.java:91) at documentgeneration.actions.JA_GenerateDocument.executeAction(JA_GenerateDocument.java:64) at documentgeneration.actions.JA_GenerateDocument.executeAction(JA_GenerateDocument.java:18) at com.mendix.systemwideinterfaces.core.UserAction.execute(UserAction.java:73) at com.mendix.basis.actionmanagement.CoreActionHandlerImpl.doCall(CoreActionHandlerImpl.scala:71) at com.mendix.basis.actionmanagement.CoreActionHandlerImpl.call(CoreActionHandlerImpl.scala:48) at com.mendix.core.actionmanagement.internal.InternalCoreAction.call(InternalCoreAction.java:66) at com.mendix.basis.actionmanagement.ActionManager.$anonfun$executeSync$2(ActionManager.scala:122) at com.mendix.util.classloading.Runner$.withContextClassLoader(Runner.scala:20) at com.mendix.basis.actionmanagement.ActionManager.executeSync(ActionManager.scala:122) at com.mendix.basis.actionmanagement.UserActionCallBuilderImpl.execute(UserActionCallBuilderImpl.scala:58) at com.mendix.modules.microflowengine.actions.actioncall.ForegroundJavaAction.doExecute(ForegroundJavaAction.scala:35) at com.mendix.modules.microflowengine.actions.actioncall.ForegroundJavaAction.doExecute(ForegroundJavaAction.scala:11) at com.mendix.modules.microflowengine.actions.actioncall.JavaAction.execute(JavaAction.scala:38) at com.mendix.modules.microflowengine.microflow.impl.MicroflowObject.$anonfun$execute$1(MicroflowObject.scala:29) at scala.Option.flatMap(Option.scala:283) at com.mendix.modules.microflowengine.microflow.impl.MicroflowObject.execute(MicroflowObject.scala:26) at com.mendix.modules.microflowengine.microflow.impl.MicroflowImpl.executeAfterBreakingIfNecessary(MicroflowImpl.scala:198) at com.mendix.modules.microflowengine.microflow.impl.MicroflowImpl.executeMicroflow(MicroflowImpl.scala:131) at com.mendix.modules.microflowengine.microflow.impl.MicroflowImpl.$anonfun$executeAction$1(MicroflowImpl.scala:111) at com.mendix.modules.opentelemetry.OpenTelemetryUtil$.$anonfun$withSpan$1(OpenTelemetryUtil.scala:18) at com.mendix.modules.opentelemetry.OpenTelemetryUtil$.$anonfun$usingSpanWithCustomStatus$2(OpenTelemetryUtil.scala:37) at scala.util.Using$.apply(Using.scala:296) at com.mendix.modules.opentelemetry.OpenTelemetryUtil$.usingSpanWithCustomStatus(OpenTelemetryUtil.scala:36) at com.mendix.modules.opentelemetry.OpenTelemetryUtil$.usingSpanWithCustomStatus(OpenTelemetryUtil.scala:53) at com.mendix.modules.opentelemetry.OpenTelemetryUtil$.withSpanWithCustomStatus(OpenTelemetryUtil.scala:15) at com.mendix.modules.opentelemetry.OpenTelemetryUtil$.withSpan(OpenTelemetryUtil.scala:18) at com.mendix.modules.microflowengine.microflow.impl.MicroflowImpl.executeAction(MicroflowImpl.scala:109) at com.mendix.systemwideinterfaces.core.UserAction.execute(UserAction.java:73) at com.mendix.basis.actionmanagement.CoreActionHandlerImpl.doCall(CoreActionHandlerImpl.scala:71) at com.mendix.basis.actionmanagement.CoreActionHandlerImpl.call(CoreActionHandlerImpl.scala:48) at com.mendix.core.actionmanagement.internal.InternalCoreAction.call(InternalCoreAction.java:66) at com.mendix.basis.actionmanagement.ActionManager.$anonfun$executeSync$2(ActionManager.scala:122) at com.mendix.util.classloading.Runner$.withContextClassLoader(Runner.scala:20) at com.mendix.basis.actionmanagement.ActionManager.executeSync(ActionManager.scala:122) at com.mendix.basis.actionmanagement.MicroflowCallBuilderImpl.execute(MicroflowCallBuilderImpl.scala:63) at com.mendix.webui.actions.client.MicroflowRuntimeOperationExecutor.runMicroflow(MicroflowRuntimeOperationExecutor.scala:103) at com.mendix.webui.actions.client.MicroflowRuntimeOperationExecutor.$anonfun$doApply$6(MicroflowRuntimeOperationExecutor.scala:76) at com.mendix.webui.actions.client.RegularClientAction$Helpers$.$anonfun$liftEither$1(RegularClientAction.scala:30) at com.mendix.webui.actions.client.RegularClientAction$Helpers$StateHandler.$anonfun$apply$1(RegularClientAction.scala:72) at com.mendix.webui.requesthandling.helpers.StateHandling.withState(StateHandling.scala:46) at com.mendix.webui.requesthandling.helpers.StateHandling.withState$(StateHandling.scala:43) at com.mendix.webui.actions.client.RegularClientAction$Helpers$StateHandler.withState(RegularClientAction.scala:66) at com.mendix.webui.actions.client.RegularClientAction$Helpers$StateHandler.apply(RegularClientAction.scala:70) at com.mendix.webui.actions.client.RegularClientAction$Helpers$StateHandler.apply(RegularClientAction.scala:66) at com.mendix.webui.actions.client.MicroflowRuntimeOperationExecutor.doApply(MicroflowRuntimeOperationExecutor.scala:77) at com.mendix.webui.actions.client.MicroflowRuntimeOperationExecutor.apply(MicroflowRuntimeOperationExecutor.scala:47) at com.mendix.webui.actions.client.RuntimeOperationAction.runOperation(RuntimeOperationAction.scala:81) at com.mendix.webui.actions.client.RuntimeOperationAction.$anonfun$apply$3(RuntimeOperationAction.scala:57) at com.mendix.modules.opentelemetry.OpenTelemetryUtil$.$anonfun$withSpan$1(OpenTelemetryUtil.scala:18) at com.mendix.modules.opentelemetry.OpenTelemetryUtil$.$anonfun$usingSpanWithCustomStatus$2(OpenTelemetryUtil.scala:37) at scala.util.Using$.apply(Using.scala:296) at com.mendix.modules.opentelemetry.OpenTelemetryUtil$.usingSpanWithCustomStatus(OpenTelemetryUtil.scala:36) at com.mendix.modules.opentelemetry.OpenTelemetryUtil$.usingSpanWithCustomStatus(OpenTelemetryUtil.scala:53) at com.mendix.modules.opentelemetry.OpenTelemetryUtil$.withSpanWithCustomStatus(OpenTelemetryUtil.scala:15) at com.mendix.modules.opentelemetry.OpenTelemetryUtil$.withSpan(OpenTelemetryUtil.scala:18) at com.mendix.webui.actions.client.RuntimeOperationAction.apply(RuntimeOperationAction.scala:54) at com.mendix.webui.actions.client.RuntimeOperationAction.apply(RuntimeOperationAction.scala:26) at com.mendix.webui.actions.client.RegularClientAction$Helpers$.$anonfun$liftEither$1(RegularClientAction.scala:30) at com.mendix.webui.actions.client.RegularClientAction.$anonfun$execute$3(RegularClientAction.scala:121) at scala.util.Try$.apply(Try.scala:217) at com.mendix.webui.actions.client.RegularClientAction.$anonfun$execute$2(RegularClientAction.scala:121) at com.mendix.webui.actions.client.RegularClientAction.$anonfun$execute$2$adapted(RegularClientAction.scala:119) at com.mendix.webui.requesthandling.helpers.ContextHandling.$anonfun$inContext$6(ContextHandling.scala:59) at scala.runtime.java8.JFunction0$mcV$sp.apply(JFunction0$mcV$sp.scala:18) at com.mendix.basis.actionmanagement.ActionMonitoring$.$anonfun$monitor$1(ActionMonitoring.scala:52) at com.mendix.util.classloading.Runner$.withContextClassLoader(Runner.scala:20) at com.mendix.basis.actionmanagement.ActionMonitoring$.monitor(ActionMonitoring.scala:52) at com.mendix.webui.requesthandling.helpers.ContextHandling.inContext(ContextHandling.scala:59) at com.mendix.webui.requesthandling.helpers.ContextHandling.inContext$(ContextHandling.scala:33) at com.mendix.webui.actions.client.RegularClientAction.inContext(RegularClientAction.scala:95) at com.mendix.webui.requesthandling.helpers.ContextHandling.inContext(ContextHandling.scala:30) at com.mendix.webui.requesthandling.helpers.ContextHandling.inContext$(ContextHandling.scala:22) at com.mendix.webui.actions.client.RegularClientAction.inContext(RegularClientAction.scala:95) at com.mendix.webui.actions.client.RegularClientAction.$anonfun$execute$1(RegularClientAction.scala:119) at scala.runtime.java8.JFunction0$mcV$sp.apply(JFunction0$mcV$sp.scala:18) at com.mendix.webui.requesthandling.helpers.ProfileHandling.profileRequest(ProfileHandling.scala:14) at com.mendix.webui.requesthandling.helpers.ProfileHandling.profileRequest$(ProfileHandling.scala:10) at com.mendix.webui.actions.client.RegularClientAction.profileRequest(RegularClientAction.scala:95) at com.mendix.webui.actions.client.RegularClientAction.execute(RegularClientAction.scala:116) at com.mendix.webui.requesthandling.ClientRequestHandler.handleAction(ClientRequestHandler.scala:101) at com.mendix.webui.requesthandling.ClientRequestHandler.processRequest(ClientRequestHandler.scala:72) at com.mendix.externalinterface.connector.RequestHandler.doProcessRequest(RequestHandler.java:37) at com.mendix.external.connector.MxRuntimeConnector.$anonfun$doProcessRequest$2(MxRuntimeConnector.scala:68) at com.mendix.external.connector.MxRuntimeConnector.$anonfun$doProcessRequest$2$adapted(MxRuntimeConnector.scala:68) at com.mendix.util.classloading.Runner$.withContextClassLoader(Runner.scala:20) at com.mendix.external.connector.MxRuntimeConnector.doProcessRequest(MxRuntimeConnector.scala:68) at com.mendix.external.connector.MxRuntimeConnector.$anonfun$processRequest$1(MxRuntimeConnector.scala:34) at scala.runtime.java8.JFunction0$mcV$sp.apply(JFunction0$mcV$sp.scala:18) at com.mendix.modules.opentelemetry.OpenTelemetryUtil$.$anonfun$withCurrentContextFrom$1(OpenTelemetryUtil.scala:25) at scala.util.Using$.resource(Using.scala:296) at com.mendix.modules.opentelemetry.OpenTelemetryUtil$.withCurrentContextFrom(OpenTelemetryUtil.scala:24) at com.mendix.external.connector.MxRuntimeConnector.processRequest(MxRuntimeConnector.scala:34) at com.mendix.basis.impl.MxRuntimeImpl.processRequest(MxRuntimeImpl.scala:1078) at com.mendix.m2ee.appcontainer.server.handler.RuntimeServlet.service(RuntimeServlet.scala:40) at javax.servlet.http.HttpServlet.service(HttpServlet.java:590) at org.eclipse.jetty.ee8.servlet.ServletHolder.handle(ServletHolder.java:640) at org.eclipse.jetty.ee8.servlet.ServletHandler$ChainEnd.doFilter(ServletHandler.java:1374) at org.eclipse.jetty.ee8.websocket.servlet.WebSocketUpgradeFilter.doFilter(WebSocketUpgradeFilter.java:175) at org.eclipse.jetty.ee8.servlet.FilterHolder.doFilter(FilterHolder.java:171) at org.eclipse.jetty.ee8.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1348) at org.eclipse.jetty.ee8.servlet.ServletHandler.doHandle(ServletHandler.java:454) at org.eclipse.jetty.ee8.nested.ScopedHandler.nextHandle(ScopedHandler.java:181) at org.eclipse.jetty.ee8.nested.SessionHandler.doHandle(SessionHandler.java:519) at org.eclipse.jetty.ee8.nested.ScopedHandler.nextHandle(ScopedHandler.java:181) at org.eclipse.jetty.ee8.nested.ContextHandler.doHandle(ContextHandler.java:885) at org.eclipse.jetty.ee8.nested.ScopedHandler.nextScope(ScopedHandler.java:152) at org.eclipse.jetty.ee8.servlet.ServletHandler.doScope(ServletHandler.java:423) at org.eclipse.jetty.ee8.nested.ScopedHandler.nextScope(ScopedHandler.java:150) at org.eclipse.jetty.ee8.nested.SessionHandler.doScope(SessionHandler.java:503) at org.eclipse.jetty.ee8.nested.ScopedHandler.nextScope(ScopedHandler.java:150) at org.eclipse.jetty.ee8.nested.ContextHandler.doScope(ContextHandler.java:830) at org.eclipse.jetty.ee8.nested.ScopedHandler.handle(ScopedHandler.java:117) at org.eclipse.jetty.ee8.nested.ContextHandler.handle(ContextHandler.java:1443) at org.eclipse.jetty.ee8.nested.HttpChannel$RequestDispatchable.dispatch(HttpChannel.java:1289) at org.eclipse.jetty.ee8.nested.HttpChannel.dispatch(HttpChannel.java:616) at org.eclipse.jetty.ee8.nested.HttpChannel.handle(HttpChannel.java:459) at org.eclipse.jetty.ee8.nested.ContextHandler$CoreContextHandler$CoreToNestedHandler.handle(ContextHandler.java:2450) at org.eclipse.jetty.server.handler.ContextHandler.handle(ContextHandler.java:1064) at org.eclipse.jetty.server.Server.handle(Server.java:182) at org.eclipse.jetty.server.internal.HttpChannelState$HandlerInvoker.run(HttpChannelState.java:662) at org.eclipse.jetty.server.internal.HttpConnection.onFillable(HttpConnection.java:416) at org.eclipse.jetty.io.AbstractConnection$ReadCallback.succeeded(AbstractConnection.java:322) at org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:99) at org.eclipse.jetty.io.SelectableChannelEndPoint$1.run(SelectableChannelEndPoint.java:53) at org.eclipse.jetty.util.thread.strategy.AdaptiveExecutionStrategy.runTask(AdaptiveExecutionStrategy.java:480) at org.eclipse.jetty.util.thread.strategy.AdaptiveExecutionStrategy.consumeTask(AdaptiveExecutionStrategy.java:443) at org.eclipse.jetty.util.thread.strategy.AdaptiveExecutionStrategy.tryProduce(AdaptiveExecutionStrategy.java:293) at org.eclipse.jetty.util.thread.strategy.AdaptiveExecutionStrategy.run(AdaptiveExecutionStrategy.java:201) at org.eclipse.jetty.util.thread.ReservedThreadExecutor$ReservedThread.run(ReservedThreadExecutor.java:311) at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:979) at org.eclipse.jetty.util.thread.QueuedThreadPool$Runner.doRunJob(QueuedThreadPool.java:1209) at org.eclipse.jetty.util.thread.QueuedThreadPool$Runner.run(QueuedThreadPool.java:1164) at java.base/java.lang.Thread.run(Thread.java:1583) Anyone else encountered this issue?
From the attached screenshots, it looks like you're running in an on-premises setup on Windows. If that is indeed the case, I would recommend to set the log level of the `DocumentGeneration` log node to trace. This should output the logs of the local service, and hopefully give a better indication why the service is not able to return any result.