Hrrrmmm,
What sort of size models (polycount) are you trying to mess with? Meshlab is in my workflow (for closing holes) and hasn’t given me issue - is it throwing up an error or just crapping out sans dialogue?
Even if you didn’t texture, destroy all UV maps in Blender and re-create/atlas some ones (can be totally bogus). RC always throws me an error if I don’t wipe and re-atlus my UVs. I use Modo for all the reconstruction though, so don’t know a ton about Meshlab or Blender to be honest.
Talking about errors, a major project I’ve been working on has been crashing out over multiple versions of RC due to some picture somewhere in the 2,100 I took. Got it narrowed down to about 100 pictures - anyone else have this problem; that they can’t texture (quits without error) due to something in an image?