New Group is causing DT to hang up

Everytime I try to create a new group the little rainbow starts turning in infinite loop and eventually I have to force quit. Never had this problem before, what is going on? Is this a new bug in the newest version? Workaround? I love DT but bugs are starting to be rather annoying.

That’s a bug related to v1.8.1 and column views - will be fixed in v1.8.1a (coming within a few days).

ok thanks look forward to the fix. The workaround I found is to select the docs and use group command rather than new group.  ;D