Why is this happening?2015-11-20_08-45-37.mp4 (388.0 KB)
As always, please send the objects involved so we can test. Looks buggy to me.
Here’s some more. I also had a freeze up before this and had to force quit the app after changing the grid snap increment in the settings. Here’s the object exported from a larger project file.
2015-11-20_08-52-04.mp4 (1.7 MB)
Bug?.3dm (136.6 KB)
Update, Yeah, I just noticed. Sorry for the oversight.
Your curves are not in plane - check an oblique view.