The concern here is you mention you get a failure after you execute an update; however you don't show what you're updating. Your entity mappings you've included also reference adjacent entities which you have no included mappings for and the stack trace you've specified indicates a failure on query; however you don't specify the type of query or origin of the query anywhere.

Would it be possible for you to attach a runnable and minimal test case that replicates the failure or clarify the issue so we have a better understanding of what you're doing?