Sometimes saving brings up an error.

[ptoing]

Whether I use the command or the shortcut does not make a difference. Also if I use save as I get the crash with the dump first.

Here is a zip with one of the files where I am having this issue and the Preferences.txt
https://dl.dropboxusercontent.com/u/1558...avebug.zip

What I was doing on the file is just reduce geometry on the back of the letter basically and saving every now and then. Trying to keep the geo convex polygons, not necessarily tris. Not that that should matter.