CATInternalError - Assertion failed

Hi.

One of our Catia-user are working with a large drawing with 4 sheets. When he does some small changes and tries to save he gets the error attached as image.

CATInternalError - CATSysFatalERR_000001

Assertion failed: AssertionFailed:instances.Size() == 1 in File G:\424\BSF\CATPLMIntegration\CATPLMIntegration.m\src\CATPLMScopeServices.cpp at line 518.

Is there a fix to solve this issue?

We are using 3D Experience 2022x HotFix 5. FD 03. Native client, not cloud.

Thanks!