Thanks for the replies:
It might be I’ve reached the RAM capacity of 64MB (which I did not know). I have various sample/chains ranging from 2-11MB, so that will make sense.
But not sure why I cannot delete samples from directories, IE sample not loaded to RAM/current project. (will contact support)
My +Drive is not even close to being full, as I’ve recently purchased the RYTM and started uploading my own samples.
Guess I need to try initializing a new project and try from there.
A little frustrating Elektron don’t elaborate further on the details of the +Drive for the RYTM. The MD is easier with it’s sample restrictions!