Hang because I did something I wasn't supposed to

Was testing if I could drag and drop .pat files onto Rhino 6 to have them install. Accidentally hit insert instead of import and said OK, and it hangs Rhino 6… Can only kill it with Task Manager.

In V5, it tells me file file type not supported after the second dialog and no harm done…


I can’t duplicate that.
I used the default acad.pat from AutoCAD 2012.
I dragged it in and dropped it on a viewport. The menu came up and I selected “Insert”.
I got the usual dialogs related to inserting, then got a message that it was an unsupported file type.
I am running a overnight build “of the minute”.
Maybe it’s fixed by a recent change.