I guess I've got the error with the sewers:
Eggvine has rendering problems.
The objects from the B-row are obviously sewer-objects:
B0 Hole in Castle Block? (Background)
B1 Normal Horz. Platform (Correct)
B2 Down-Left Diagonal Ceiling
B3 (That actually MUST be the Down-Right Diagonal Ceiling, but the level crashes, when you set it)
B4 (Probably the Slope to Down-Left)
B5 (Probably the Slope to Down-Right)
B6-B9 (?), could be the stone-sewer tiles (Maybe!)
BA PIpe Ceiling
BB Weird Block (Don't know!)
BC Top right corner of Pipe
BD Top Left corner of Pipe
BE Sewer Spout
BF Water of Sewer Spout
I guess, as Eggvine doesn't render some objects correct, the unfound tiles, B3-B9 are rendered back to the ROM incorrect, too. So you had to make the tiles of the sewers like the wrong-rendered tiles in Eggvine, the wrong back-rendering could be the problem of some objects like B3, that the game freezes.
EDIT:
I've done it!!!
I got a slope in a sewer level!!
Okay, the shadows don't look perfect, but that is incorrectable with the method I've used...
NEW! SMW2 Yoshi's Island is done!
Last update: 2012-12-31