Sampletank 4 instruments detuning 1/2 tone

Hi, I’m a long time Sampletank user, new to the forum. I’m using Sampletank 4 with a Mac mini, Apple M4, Sequoia 15.6. I work in Digital Performer. The plug in upon opening is 1/2 tone under. Ie: if I"m playing an A, I’m hearing an Ab. I have checked all other plug ins and no others are doing this. I have checking tuning functions, transpose etc in the plug in itself, both master and individual instruments. Whether I open a new session template or a session I have been working in, the same thing happens. If I close and reopen, shut down, restart etc. Same thing. The only way to get it to A440 is to actually retune if from the master or from each instrument. . I’ve also checked any mod wheels etc, to make sure nothing is stuck. But again, it’s happening only in Sampletank and no other plugins. Is anyone having this issue?

I will check on my system. I never noticed this but then again, i never really. checked and always assumed its tuned.

Hi, I had a bit of time to check this. I didn’t find it was under tuned. I tested a few factory SampleTank acoustic pianos. I turned off any effects and checked with tuner in my DAW. They all seemed in tune. You may want to check your settings as it could be something else that is causing it.