[Bug 42251] VirtualDub: empty preview when CSMT is enabled

https://bugs.winehq.org/show_bug.cgi?id=42251

--- Comment #4 from Ivan Molodetskikh  ---
(In reply to winetest from comment #3)
> Could you test with more recent wine?

Still occurs on wine-2.18 (not staging). Switching CSMT on and off (via
regedit) follows the behavior I described.

This happens using VirtualDub's default settings (Use DirectX for display panes
checked). Unchecking this option is a workaround (presumably this way
VirtualDub uses something else for rendering which isn't affected). I will
attach a screenshot of the (default) settings causing the problem.