Hello
Currently i'm on last level of Azure Tower in EoB2. During game there was some messy palete changes after talking occurance (e.g. when you met character). But save&load helps, after loading palette is correct.
But now there's "minor problem" which cause "mayor problem". AFAIR medusas CAN open doors in ECS version, in AGA they cannot. There are doors which (AFAIR) should be opened by medusa, but they aren't. You must get in here to get stone dagger (portal key).
Edit: Also checked on real hardware (A1200 w. Apollo 68040@33 + 16MB), medusas still not come out. Both DOS & WHDLoad version has this problem.
If somebody is interested i can send save game from place just as on map.