I got mine today
Having 2 issues

1 I thread the counter balances till motor moves, followed by the backing plate..turn on and whole things comes off after a few seconds
Only does this with the counter weights
Backing plate stays attached to counter weight and counter weight untreads while machine is running

If I thread in green adapter and brush, it stays attached

Other issues is the direct drive button doesn`t engage/stay down
With red counter weight I can push button down, but it doesn`t lock in and just pops up when I release pressure
With blue counter weight it won`t even let me push button down..
This is with it on off position

Did everyone that received theirs have 2 empty circles in their case too?