Weird mesh errors when using retopology operations

#1

Hey when I retopologise my model in mudbox in order to make future modelling easier it does this and im just wondering why this is happening and how to remedy it.

Thanks

#2

this could be everthing from bad base geo to bad uvs…
mudbox is very picky about the base mesh…

#3

to me that looks like a bump map. did you retopologize this geometry after you painted a bump channel.

when you retopo it will create an all new geometry (that needs a new UV unwrapping)

if it’s not a bump map then your model is unbelievably dense…like millions of polys, beyond overkill.

either way a smooth brush i suppose could smooth that out.