Resonance not working on voices 1 & 2.

[agusajs]

Hi, I have a prophet 6 module. Today I just realized that having the resonance all the way up (like ringing a lot), it can't be heard when voices 1 & 2 are played. The test was: Resonance all the way up, cut-off frequency in the middle, button Unison OFF. Press 1 key of the keyboard continuously, the first 2 times the resonance can't be heard, and the next 4 times, it is totally ok. Any suggestion?
thank you

[Quatschmacher]

Hi, I have a prophet 6 module. Today I just realized that having the resonance all the way up (like ringing a lot), it can't be heard when voices 1 & 2 are played. The test was: Resonance all the way up, cut-off frequency in the middle, button Unison OFF. Press 1 key of the keyboard continuously, the first 2 times the resonance can't be heard, and the next 4 times, it is totally ok. Any suggestion?
thank you

Contact sequential support. Sounds like potentially a coupon of defective voice cards.