https://bugs.winehq.org/show_bug.cgi?id=42675
--- Comment #28 from Storm Engineer hewanci@gmail.com --- (In reply to Dez64ru from comment #27)
I have the same problem on my 21:9 screen. Mouse rised to top. Pls fix this(
For the time being, try the workaround, it should be available for 21:9.