godan verb (-ru), intransitive verb
to glitch; to bug out; to act up
Colloquial intransitive verb used for software, apps, or systems behaving unexpectedly due to a bug. Often implies temporary or erratic malfunction.
アプリがバグって動かない。
The app is glitching and won't work.
ゲーム中に画面がバグっ
The screen bugged out during the game.