Green’s Dictionary of Slang

a hitch, a snag, a malfunction; thus as v. (see cite 2021).

1959		Sponsor 13:2 43: All you get today is ‘glitch’ wherever splicing occurs. ‘Glitch’ is slang for the ‘momentary jiggle’ that occurs at the editing point if the sync pulses don't match exactly in the splice. (‘Glitch’ probably comes from a German or Yiddish word).
1962		J. Glenn in Into Orbit 86: Another term we adopted to describe some of our problems was ‘glitch’. Literally, a glitch is a spike or change in voltage in an electrical circuit which takes place when the circuit suddenly has a new load put on it [OED].
1968		Time 1 Mar. 52: Goofs and glitches always creep into the early blueprints for any new aircraft.
1971		New Scientist 26 Aug. 452: A new explanation for sudden changes of all magnitudes, which they call glitches, mini-glitches, and micro-glitches, depending on their size.
1983		S. King Christine 360: It was a glitch, all right, Will thought. One hell of a glitch.
1993		M. Dibdin Dying of the Light 78: ‘Glitches,’ he said.
2000		Indep. Rev. 6 Jan. 2: It was sometimes hard to tell technical glitches from design tricksiness.
2009		L. McIlvanney All the Colours 196: [S]ome shortfall in verisimilitude, a glitch in continuity.
2010		K. Richards Life 225: Due to some small glitch of stage management, the press actually arrrived [...] a few minutes before the police knocked.
2013		T. Dorsey Riptide Ultra-Glide 169: ‘My math says three glitches [...] We’re now due for the best vacation ever’.
2015		L. McInerney Glorious Heresies 354: She has found a place in which to exist, outside of reality, as a glitch in someone else’s world.
2021		J. Ellroy Widespread Panic 86: The transceiver fritzed and glitched and broadcast stark static.
2021		P Howard Braywatch 182: ‘[M]ainly with a view to identifying glitches in your technique’.