Teo 5 problem

[Ranieri]

Hello, everyone.
I have a problem with my Teo 5.
When I press the same key five times, the fifth time the sound is different (more open filter, louder volume, and higher pitch).
Only on the fifth time each time.
The other four are identical.
The patch is simple, no modulation, effects, envelope, etc., just one oscillator with one sawtooth wave.
I've calibrated it several times, updated the OS, reset it to factory settings, etc., but nothing has changed.
The phenomenon becomes more pronounced when I switch to notch or HP.
And you can hear it even more when I play a single note in a simple arpeggio.
By the fifth step of the arpeggio, it sounds as if there are other notes with a different filter.
This happens on both oscillators, but it's more pronounced on oscillator 2.
What do you think? Is it a voice problem? A filter problem? An oscillator problem?

[joachip]

Try calibrating the voices. You can find this function in the "Globals" menu.