The phrase "slight glitch" means a small problem or mistake that is not very serious or harmful.
Sentences with «slight glitch»
Technically, there are a few slight glitches: Scenes on the steamship crossing the Atlantic and of the NY skyline feature clumsy use of green screen. (lights-camera-jackson.com)
Secondly the menu screens suffer from slight glitching; you can't navigate things as smoothly as you could in the first OutRun2 on Xbox; there's also some very slight audio glitching from time to time but really this stuff is only going to be noticed by purists who expect everything to be completely perfect (and why shouldn't they?). (archive.videogamesdaily.com)
If the DB gets a very good break on a throw or if there is the slightest glitch in the pattern, I could see where the ball could be picked (my one hopeful thought). (sbnation.com)