Yes, it happens when CB tries to autosave or i try to save the project, primarily old projects.
I think it may have to do with version updates of AIR Hybrid and Xpand2 to VST3 version, but I’m not sure. It may be that the old projects uses VST2 version and VST3 replacement or something does not work as expected.
I will do some more tests.
I just hoped someone maybe could give me a clue from the dmp files of what is going on.