DO NOT INSTALL THIS PATCH YET!
There is a new patch 22.0.4.70 that I noticed today, but Magix did not indicate what the changes were. The Soundpools database was emptied and there was no way for me to get any of it back. I reloaded MMM and tried again. Unsuccessful.
I have raised a ticket with Magix. If anyone else has already updated and has or does not have the same problem, please reply.
EDIT 2016.03.01 - I just noticed that Magix has put back the previous patch 22.0.3.63 in the downloads area, which would confirm that there is a problem with 22.0.4.70.
I'm waiting for a reply as to what to do.
Thanks,