Latest development version causes Revolution slider plugin not to work. The WordPress.org version of CMB2 works fine. When i updated to the latest version, this is the error the slider reports:

Rev slider is not really a codebeauty masterpice, so it is quite possible the problem is on their end.
As soon as I switch to the old CMB2, this error is gone.

Anyway, I just wanted to let you know about this issue.