Cubase freezes when closing.

[fese]

@Dominic_Shaw

Here is the latest I had from Acustica technical support:
“The Cubase DirectX hang on exit has as the source problem the Microsoft’s DirectX module that is used by Steinberg’s VSTGUI4 graphic framework. In short, the fault is in the way that communicates the VSTGUI4 graphic framework with Microsoft’s DirectX API. Acustica Audio after waiting some months for an effective solution has decided in the course of 2021 to change the graphic framework from VSTGUI4 to JUCE.”

Hmh. Yes, there definitely has been a bug in the VSTGUI framework with regards to DirectX, as I wrote here:

Cubase 9.5 hangs on project close on Win 10

Hi garethk, in the end, it was the plugin developers that fixed it. Here is one excerpt from the one that eventually found the problem (at least in the VSTGUI Framework the he used for his plugins.) It seems something changed in DirectX (D2D). It probably changed in a Windows 10 update (the first versions of Windows 10 were not affected by this). Hopefully, those who use VSTGUI may have the possibility to fix the problem. As far as they do not depend on an earlier version of VSTGUI (<4.3), …

This bug has been fixed years ago, though. I once had the hang problem with a plugin, and the dev updated VSTGUI to 4.3, and the problem was fixed. Another dev I contacted with the findings could fix the problem with that update, too, in a matter of days.
Might be that that there is a similar bug in newer versions that I don’t know of, of course
I have also encountered the same behaviour in two JUCE based plugins.
As this hang-on-exit behaviour doesn’t affect every Cubase/Win-User, it might also be that differences in hardware or windows version can play a role.