Keyboard "X" key disabled

Recently, i found the “X” key on keyboard will be disabled from time to time after upgrading Glyphs to 3.2 (3227) /3.2 (3228), sometimes after restarting PC, the key will work again .
This might be unrelated to this app. Maybe it’s due to compatibility. Maybe it’s a hardware or electric problem. While, this happened after upgrading Glyphs. That’s why i ask this here.
Have you ever had such problem? Thanks.

I never heard of this before.