Analogue-sequencer

As far as I remember, I had this problem before I did the OS 
upgrade: when I enter pattern edit mode I get a constantly 
repeating message on the screen saying "Step 13 Velo 20", 
as if the Velo pot of step 13 is constantly touched. The 
update frequency is about 4Hz.

If I change the step 13 Velo pot to some other value, the 
repeating message reflects the updated Velo message. 

Sometimes it gets triggered by some editing some other step, 
but the last time I could leave pattern edit mode, enter it 
and there it was again. 

It happens in stopped or play mode.

Looks like a hardware problem? Bad cable?

- Robert