Logic causes OSC and Freq problem on my SP

When Logic is open I can noch change the octave of the OSC on my SP. The lights always jump down to the lowest Octave. The same with the Frequency button. The control wheel always jump down to the lowest position.
I HAVE VERS 3.21
Any help is appreciated.

Many thx

This sound very much like a MIDI loop caused by not having the SP in local off mode.

Or use set the MIDI thru setting in Logic to disable sending received MIDI CC back to the synth.