Pup-Up isnt shown when deployed in Cloud

Hey, I deployed my solution in the Mendix cloud, but unfortunately at certain points the pop-up windows aren’t shown.  You can see only the loading screen: When testing on a local deployment, it is working correctly. Any ideas?   Thanks
1 answers

Screens that won't open and hang on a progress bar usually indicate a security issue. Please check the configuration of the access rules on the entity and its attributes, which are shown on the screen that the user has all the neccesary rights.