If the JP8 received patch change commands for both upper and lower at the same time, it would change both to the last one received. Prior to this fix, you had to space the commands by a few milliseconds. If you have not seen this behaviour on your JP8, there is no need to upgrade your version.

There is a new version coming soon. The new version will allow the JP8 to transmit and receive all front panel movement using controllers. Stay tuned!