Hi abps1976,
So, for what it's worth, I was curious to see how my SX-900 responded to your glitch scenario.
v1.05 firmware -- ACMP and OTS link and BigBandShuffle.
My OTS1 is linked to S.Art Saxophone on Voice R1, turned on by default, the R2 and R3 were off.
Yes, initially, the Saxophone sounded below normal volume, and I simply chose OTS 2 through 4, which sounded normal.
I then simply chose OTS1 again, and the Saxophone volume was now normal! I have not noticed this before on other Styles, but normally I don't use OTS Link, I just leave it off, and setup the Voices I want. Jerry