Sample Tank 4 & Miroslav PH 2 issue mac os Sequoia

[hansbosamsterdam]

I have been seeking what may be wrongfor two days now..
Miroslav Philharmonic 2.

I re-installed all instruments and Samples again from the Miroslav Philharmonic 2 and Philharmonic 1.
To find out that on Sequoia the Philharmonic 1 Sounds/Samples do not work anymore. (so I deleted PH1).

Then I downloaded the latest IK Product Manager and all resources. When trying to install the Philharmonic assets the DMG installer crashes.
Okay, do it by hand and put all Intruments and Samples in the right folders on my Mac.

All goed well...
> I, ProTools I open the SampleTank 4. I can choose and install a sound: '3 Flutes Port 1,0'.
Next When I click the virtual keyboard in ST4, I hear Flute sounds.

But then the problems start: I want to use my physical controller (I see that the Pro tools Track interface reacts).
> Then I push a key on the controller.... I hear a flute sound, and then ...... silence....... nothing ... and I have no idea why ...

Does any one have an idea what I do wrong?
Thanks so much for all help. and have a fantastic 2025!
Best, Hans Bos