And here is the official Qt patch to the qtbase 6.10 branch to fix this that will be used in the future Qt 6.10.3:
https://github.com/qt/qtbase/commit/...23e6f1c26fb1f7
@DiapDealer,
How hard would it be to cherry pick this commit just for the windows Qtbase build. It only impacts the windows platform plugin so that is the only part that would need to be rebuilt.
This might be the easiest solution if it is doable, as it would require no code changes in Sigil.