An error occurred in 9.1.1 that did not occur in version 9.0.5. Attempting to display the name of last updater in the list of “Data grid” resulted in an error. The value are referenced as follows: The specific errors that occurred are as follows. Is this a problem with the latest version? com.mendix.core.CoreRuntimeException: Exception occurred in action '{"xpath":"//MyFirstModule.progress","amount":20,"offset":0,"returnsCount":true,"sort":[],"type":"RetrieveXPathSchemaRawAction"}', all database changes executed by this action were rolled back at com.mendix.basis.actionmanagement.CoreActionHandlerImpl.processErrorState(CoreActionHandlerImpl.scala:150) Caused by: com.mendix.connectionbus.ConnectionBusRuntimeException: An exception has occurred for the following request(s): InternalLimitedXPathTextGetRequest (depth = -1, amount = 20): //MyFirstModule.progress at com.mendix.connectionbus.RequestAnalyzer.doRequest(RequestAnalyzer.java:63) Caused by: java.lang.ClassCastException: class com.mendix.connectionbus.data.InternalDataTable cannot be cast to class java.lang.Number (com.mendix.connectionbus.data.InternalDataTable is in unnamed module of loader com.mendix.container.deployment.internal.Interpreters$ClassLoaders$$anon$1 @573906eb; java.lang.Number is in module java.base of loader 'bootstrap')