Hmm, no luck. Here’s another weird one.
Assign chorus on H9 to Bank 2 Preset 1.
Press Presets 2 ,3 ,4, then 5, no H9 comes on, which is fine as nothing has been programmed on those presets yet.
BUT, press Preset 1, and then change directly to Preset 5, the Chorus stays on.
How is this possible? Or perhaps, better to ask Why!