Some preview windows jolt up on display

[TheParadoxBox]

SLADE Version: (3.1.1.12) Operating System: (Windows)

Issue Details: I first started using SLADE on Ubuntu Linux. After reinstalling Windows, I noticed that whenever I tried to preview a texture, the preview window would jump up and render a considerable portion unviewable.

This happens in Graphic mode for viewing graphics and flats and also when viewing palletes. It works fine when I open them in their own tabs, though.

It's a real shame that this is happening, please fix it!

[sirjuddington]

I've seen this before but have no idea what causes it, seems to be some weird wxWidgets/driver issue. Out of curiosity, does the same thing happen in 3.2.0 beta?

[TheParadoxBox]

Actually, it seems to have gotten worse. See the issue that PenguinDOOM attached.