I've noticed a few issues when playing TUCQ with GZDoom 3.2.1. I don't know if this is the first version the problems cropped up in, though. Part of me thinks it might have to do with the introduction of Zscript, but I wouldn't know.
First of all, the key pickups don't work.
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Second, the player bleeds

Thirdly, this particular decoration hopped up like this for one frame of its animation

Fourth, the weapon pickups don't allow you to switch correctly. You can't use the previous/next weapon controls, and when you use the number keys to switch to the mini zorcher or spoon, you can't switch back to any of the other weapons.
Finally, here are the console errors upon launch

All these errors except the decoration jumping occur both when running TUCQ as an iwad and when running as a pwad over chex.wad. The decoration jumping occurs only when running tucq as an iwad.
There might be more errors but these are just what I've found.
