Not good news. Not saying your wrong, but it does sound a bit odd to have one small aspect be out like that
Did you zero C2 & C3 and tweak C1 min to max after that, all from a vanilla state (it’s almost a subtle aspect when 2 or 3 are full tilt), no other devices hooked up etc - definitely no scenes etc (thus starting from a fresh kit)
If there were fundamental issues, i’d expect them to possibly manifest themselves in other models too on that voice circuit
It’s important wrt establishing status to start from fresh (new kit, double click synth, set to ride) with that particular machine, if you were using an inherited kit using that ride type it’s possible, albeit remote admittedly, that it’s a legacy of changes that i know were introduced before release
sounds like you’ve tried everything else (should rule out most of the above tbh), but be sure to allow it to sit for 2>3 hrs idling before calibration too
test with TYP C, that one’s the most pronounced wrt C1
Also although it’s the same voice, might be worth trying it on both Tr11 & Tr12 to be sure they both sound identical (they should)