this is strange. the lock memory is for each pattern, where you can have up to 72 parameters p-locked across all tracks. (up to? yesā¦ the LFO-depth p-lock takes up 2 memory slots so if you p-lock that youāll end up with less than 72).
itās very strange that you canāt save the project! even if you fill up a pattern with p-locks to the max, it should only affect the pattern, not the project, and there is no reason why you wouldnāt be able to use or save the pattern either. itās not a problem at all if you fill up the lock mem, you simple canāt have more than 72 p-locks in a pattern, is all.
are you shure the message says ālock mem fullā? maybe your +drive is full, which is the only reason I can come up with for rytm to fail saving a project. or maybe some data is corrupted and itās acting strangely.
btw: the only thing counting against the actual p-lock memory in a pattern are parameter locks on the pages: synth, sample, filter, amp, lfo.
everything else you can lock in a step, e.g. retrig, note, velocity etc. you can have as much as you want.
performance and scene locks are not part of a pattern, they are stored in the kit. you can have a maximum of 48 performance, and 48 scene locks/destinations/whatever you may wanna call them.