I pasted one trig with a couple of p-locks into my (fairly busy) pattern. The trig was copied from another pattern. I got the dreaded “Lock Memory Full” message and spent about an hour trying to resolve the issue. I removed the trig I pasted in but still the memory was full. 
I had to remove a bunch more p-locks before it went away and let me save the pattern. Is this a bug?
Do you have a lot of performance or scene locks? I (possibly incorrectly) recall that they count towards the plock count.
I am wondering if the MK2 has more memory for this? Ive definitely run into this error message before by using all kinds of locks
72 parameters is the lock limit for the AR MK2, FYI
thanks! 