Maps that need compatibility settings.

[Graf Zahl]

(btw: Why?).

Why what? It's a non-repeatable action so it can only be triggered once. The setup is broken. I currently have no idea how to properly fix it without breaking the intent of this design.

[Player701]

E4M7 of 007: Licence to Spell DooM is impossible to complete because the walkover exit trigger (linedef #6842) is marked as impassable. I have no idea if this setup ever worked, but I guess it could have been the case with ancient ZDoom versions (I've run into problems trying to run them on my system so can't check right now). I'm a bit tired to make a PR today, will probably submit one tomorrow unless someone else does it before then.

Upd: PR submitted

[JPL]

Was playing the Master Levels semi-recently and encountered an issue in BLACKTWR.WAD (7CE7BCC9D6EB983416A21B2300229111) that trapped an imp in a tiny sliver-shaped sector after the big spiral stairs rise up in the interior of the tower - thus making 100% kills impossible. I tried adding the "block monsters" flag to line 597 to prevent the imp from ever even touching this tiny sector, and couldn't repro it after that, but it's a tricky one to repro anyways. I can't think of any reason why that change would break anything, but I leave it up to yall.