Hi, I’m also experiencing this bug since using engine version 4.17
My setup: Windows 10
- main monitor @ 3840 x 2160 (150% text scaling in windows)
- second monitor @ 1920 x 1080
- third monitor @ 1920 x 1080
The workaround I found is not very user friendly but it works:
If an editor window pops up off screen, and you cannot access it using ALT + TAB, open “Display settings” by right clicking the windows 10 desktop.
There, change the resolution of the 4K monitor to a lower one and click “apply”
→ the window that popped up off-screen now appears (mostly save prompt windows in my case)
→ Then you can set the resolution back to 4K.