Continuity mistake: The armored car robbery takes place in the early morning. Waingrow pulling on his clothes, the light in the sky all say early day. By the time Pacino arrives to survey the scene it's pitch black and all the bodies are still on the ground.
Suggested correction: The robbery takes place around sunset. It was filmed near the intersection of Venice Blvd. and Convention Center Dr, southwest of the convention center itself. When Cheritto turns around at 11:37 after Waingro's "Get back," you can see the convention center in the background. That greenish upper section faces SW, which would be in shadow in the morning, but here we see sun reflecting off it. Waingro changes his shirt in a restaurant bathroom before the job (sign on it says customers only).
Continuity mistake: In the shoot-out after the bank heist, Vincent's rifle starts out as an AR-15 style with a carry-handle, but by the time he catches up to Mike, it switches types and has no carry-handle.
Suggested correction: I don't think that's true. Pacino carries an FN FNC throughout the sequence, identifiable by its distinctive handguard. I just watched the whole heist and shootout and I don't see Pacino using an AR-15, or any carrying handle. IMFDB has several annotated photos of the sequence and they make no mention of this, whereas they normally call out this kind of continuity issue (like in Sicario's border crossing scene when Del Toro's MP5 changes to an SD). https://www.imfdb.org/wiki/Heat#FN_FNC.