These are the ones I have experienced or remember reading about.
- Directory Error problems while saving,
http://www.mpc-forums.com/viewtopic.php?t=49759.
Reproducable.
- Some problems with notes going permanently mute after moving multiple events in Step Edit.
Not reproducable, random.
- Have also had mine freeze with strange codes appearing in the display while in step edit or when moving very fast between different modes. Might have been the "CPU adress error" or the "System error" people have been talking about. Search the forums on those.
These have been random and very few.
- Some samples on the harddrive has been messed, they play fine until it´s 25 % left of it, then it starts slashing around up and play the ending of another sample. Might be realted to the Directory Error bug and the fact that I keep several copies of the same sample on the harddrive.
Very random, happend twice.
- There´s also someone who´s found a way to tilt the machine by setting some parameters in the LFO screen in a certain relation to each other.
Reproducable according to the guy posting it.
Some have had constant problems after their updates, some have had no problems at all. I guess it comes down to trouble with individual units and how you work with the machine.
But it´s stable enough to buy.