the slim phatty have hanging notes when the korg kronos synchro midi is to "internal"
no problem with prophet 08 or arturia origin connected, if i don't want hanging notes with phatty i must to select external synchro to korg kronos 
, the same problem with korg R3, korg R3 must be to external synchro for can play with the slim phatty without problem, but the korg kronos is a master sequencer workstation, it can't be for best feelling to external synchro 
You know this problem with synchro send korg? you can fix for next firmware?
Thanks.