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When using the drums without accompaniment, and playing right hand piano and left hand bass .... all is well UNTIL you trigger an ending pattern - it shuts OFF the left hand! Hmmmmmmm......

Congratulations on buying the Pa3x it looks like my next baby down the road, although I'm very happy with the G70. What's the bass sound like?
I use the manual bass on my G70 when playing with a live trio, at this stage the accompaniment is not active and I am unable to activate the endings nor do I want to use them with a live setup around me.
If you dont want to use the endings I expect you can disable that section and just do a live ending.