Artist Mix: Faders in touch mode are "crancky"

[home_studio]

Hi,
I got myself a 2nd Mix unit. The first one works flawless.
The 2nd unit (new, out of the box): while writing automation in touch mode, the faders sometime (quite often) stop writing while still in auto rec, while still touching them.
Sometimes it is a physical fight: finger vs. fader motor.
So far it didn't happen in latch mode.
I work on mac pro, latest Eucon version, latest firmware.
Does anyone know what seems to be the problem?
All the best!

[Fixius]

I’ve had faders not write, but never had them fight me before. Even on “read” they still move freely. This sounds more like a hardware issue. Since bought new, I’d return/exchange as soon as possible.


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[EddieJones]

This sounds like the touch sense isn't working correctly. First swap the power supplies and see if that helps. If not I would return.

[home_studio]

Thank you both.
Eddie, can it be a ground problem?

[EddieJones]

Yes..but if the other units are working ok...probably not external

[home_studio]

An update: Earth, wind and fire. In other words: the 2nd unit didn't have ground on the AC cable. So far, problem solved.
Thanks.