I confirm “Single Window Mode” also fixed it for me, and if it helps I have some more info:
This started happening a lot more (basically in a loop every time i opened any window) when I stopped using my external monitor (1080p), and I started using my laptop’s built in instead (2560x1600)
I was also having a sudden crash when I tried to import Dialogic 2.0 alpha plugin. Every time I clicked “On” next to the plugin, Godot would just crash. Both mono and regular versions. But turning on single window mode fixed it! Thanks a ton~