Inconsistencies between Backup Chassis skins and corresponding player skins

The Timber Golem Trunk's flower is missing from the chassis but the side vines are there. 
The Sub-Zero Containment Unit's red circle is missing from the chassis but the pipe is there.
The Unfinished Robot Body's hole looks a little too far to the right (but maybe that's just me).
The Hull of Iniquity's pattern straight up doesn't match. Every other chassis has the "chest" portion of the character skin stretched down this doesn't. I don't have most of the skins so there could be others that have these issues.