Shapes twisting in on themselves – blending to a point

Help! I am fairly new to rhino and am having trouble with some forms I imported into a file. Something happened somewhere along the way – and I’m not sure where in my history it happened but im far along enough that I cant undo – and now my shape is twisting in on itself to a point. Pic included to show.

Screen Shot 2022-04-11 at 11.03.44 PM

How do I get the form sorted back out? Would prefer not to start over…

Um without the file it’s hard to tell…but you said imported? You can’t just re-import it? Is it just some imported mesh geometry–most of which is junk not worth your time, BTW–where a vertex or 2 got moved? You could just move them back into what looks like where they belong, or extract and delete those faces…seeing the file would help!

oh awesome! Thanks so much – I actually reverted the file to the version I was working on last night but will check back if it happens again!

(I totally imported mesh geometry and started fussing with it) ><

Hi Anna- This is probably a mesh display problem, my guess anyway - can you please run SystemInfo in Rhino and copy/paste the results here?