I’ve never heard of a servo motor doing that, so there may well be something wrong with it. I cannot imagine a situation in which the software or interference would have an effect on that. I suppose that a power supply malfunction could cause something like this, but you probably would see other signs of that as well.
Also, you might consider writing to us (please contact our shop directly by e-mail) to request a replacement for your original servo. If that doesn’t fix it, then let’s try to see if it’s a problem with the EBB or power supply. We’d like to help you get to the bottom of it. :)
