DR17.1 Collaboration causing stuttery playback/crashing

Howdy,
Came across a fun little bug? today.
We had 2 seats logged in to the same project (DR postgres server based with shared media drive)
And so long as the project had 2 users in it, playback was a complete stuttery mess.
As soon as the other user logged out and closed the project everything went back to normal.
Anybody come across this one before?
Edit: I should add. Menu and ui interaction was also really laggy and doing too much too quickly was causing the software to lock up.
Came across a fun little bug? today.
We had 2 seats logged in to the same project (DR postgres server based with shared media drive)
And so long as the project had 2 users in it, playback was a complete stuttery mess.
As soon as the other user logged out and closed the project everything went back to normal.
Anybody come across this one before?
Edit: I should add. Menu and ui interaction was also really laggy and doing too much too quickly was causing the software to lock up.