Okay, difficult to describe.
repeatedly writing to some table closes itom(fastly)
changes seem invariant but the problem does not occur anymore.
Changing a few invariant Lines in pythonUi.cpp raises runtime Exceptions.
Could only be produced on AIO setup with Qt5.12, Win10,
you may clone/checkout https://bitbucket.org/twipopticalsolutions/itom/src/weird_ui_behaviour/
or i can do some PR.
Find example breaking code attached.
Can s.o. reproduce this?!