I tested a BK-9 extensively in a local store. I encountered this bug and a lot of others associated with the user style creation work-flow. I didn't have the OS upgrades on my USB stick, so I don't know whether the bugs I found were ever corrected. My impression is that the software QC on the BK-series wasn't especially thorough and Roland abandoned it for the next generation instead of fixing the problems. I liked the board and there are some workarounds (like keeping my trusty E-50 to create styles.) But these problems discouraged me from buying one at full retail.