Bc2000 (for the BCF2000 & BCR2000)

Hi Nicolas
> You mean that ¨.resolution 96 96 96 96¨ would be the cause of the problem or I got it wrong?.

No the 96 96 96 96 should be OK
It is how many Midi messages per revolution when I turn it slow, normal , fast, very fast

.resolution 50 0 0 0
would cause the encoder to only output when you are turning it slowly
I thought it was worth a try before more drastic action.
   
> Anyway, if I rotate the encoder applying some force perpendicular to its shaft, it will work correctly. So, logic indicates it's a mechanical issue.

Ah, this is different. If it changes like this, it sounds mechanical. You could get some electrical contact cleaner and spray it down the shaft on each of the encoders before you try to open them up.
This fixed the encoder on my Emu Proteus 2k

All the best

Royce