Some of these PC game glitches may have already been catalogued and patched. Just in case, here's my recent list. I'll be updating this periodically. Hope this helps. Feel free to add to this, but only unpatched glitches. Post as descriptively as possible, giving nature and location of glitch and your workaround or solution, if any.

This is a glitch report page, not a rant page.

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Enigma Data Handlers: Not all informants spawning reliably, requiring some datapacks to be found without assistance.
Current solution: restart from checkpoint, visit BatCave and return to suspect's location, or ignore and continue game.

Interrogation Failures: Some Data Handlers, Informants and Case File Perps surrender but occasionally cannot be interrogated.
Current solution: restart from checkpoint.

Grapple Points: Diamond District grapple points on some buildings register slightly above structures.
Current solution: ignore and continue game.

Unengaged enemies: Enemies remain startled and stationary, cannot engage battle. Some sink into ground, particularly in the Bowery sublevel.
Current solution: ignore and continue game.

Fast Travel Cinematics: Audio occasionallly missing during cinematic.
Current solution: ignore and continue game.

Disruptor Acquisition: (I Am The Night Mode) During the GCPD mission after acquiring the Disruptor, Batman QTE remains stuck inspecting the device.
Current solution: restart from checkpoint.
After restarting from checkpoint, map indicates device still remains uncollected, even though it is in player's inventory (persistent mission marker).
Current solution: ignore and continue game.

Multiple Combo Batarang Takedowns not consistently neutralizing fallen enemies on the ground. Will monitor in future games for repetitive locations.
Confirmed: Repetitive
Current solution: ignore and continue game.

Screen Compass Error: NSEW map points stripe occasionally occupies entire top of screen, rather than small centered display.
Observation: Compass error will go away.
Current solution: restart from checkpoint, or ignore and continue game.
New Current Solution: click on map or menu and continue game.

Shiva's First Test, Diamond District Shopping Complex Exterior, Free-Roam Texture Glitch: Ground/Floor errors outside of encounter building, Batman falls into water below ground if gliding to land at action location, Diamond District Shopping Complex.
Current solution: land on ground in another spot and jog to action location.
[Edit] Patched.

Bane Tracking Mission, Park Row Sewers Access, Exploding Weak Wall Event: An enemy shield directly in front of weak wall will prevent Batman from deploying Exploding Gel onto wall, deposits on floor instead.
Current solution: reset from checkpoint.

Bane Park Row Door Jammer: Detective Vision Jammer not consistently activated until after Bane sewer access mission completion.
Confirmed: Glitch is repetitive.
Current solution: Neutralize with Disruptor or, since Bane sewer mission is completed anyway, simply ignore and continue game.