Hi
I have just found that when opening Spark ( Build 2.1.0.426) on an instrument channel in Pro Tools, this opens 2 plug in windows, Spark 2 which cannot be moved (Window is stuck) and what looks like the old Spark plug in window, which is blank. This gives you no option other than to remove the plug in on the instrument channel.
Can you also please remove the 'arturia rtu' plug in window ?
Please see attached files
Thanks, Stuart