Desktop app with Word loses focus and overlays disappear

The Word overlay on Desktop (Windows 11) often lose focus and does not come back by itself. I can get it back by switching windows back and forth.

Here’s a screen recording to illustrate the problem:

20260403 - LanguageTool Desktop Word randomly lose focus and stop displaying

I post here because the LanguageTool support team never responded to my feedback.

Could be related to this (though in my case it happens even with single-page documents): Desktop app only corrects first 38 pages in Word

LanguageTool de* sktop version: 1.6.4.0

  • Windows 11 Pro Version 24H2
  • Microsoft Office LTSC Professional Plus 2021