Cursor moves itself in-game whenever you tab out of/exit BetterSpades

[JimPix1]

If I'm playing BetterSpades, and I want to play a certain song, I'll pull up my music player. Whenever I do this though, the cursor/view immediately changes and I'm looking somewhere else entirely in game. The only way of stopping this is by pressing ESC to bring up the EXIT GAME? Y/N message. This is, to say the least, very annoying and doesn't seem to be an issue in OpenSpades.

[dany-on-demand]

I remember I had the same issue once. However currently I am unable to replicate this issue.
I tried:

• self-compiled with GLFW on windows latest HEAD, as well as inside windows sandbox
• 0.1.5 release, as well as inside windows sandbox
• nightly build, as well as inside windows sandbox
• self-compiled GLFW on ubuntu vm (gnome)
• self-compiled GLFW on a windows 10 VM

Haven't tried SDL though, maybe it's an issue there? It seems that microui handles window focus though, and without issue