MPC 2500: random glichy noises from the SPDIF output

I'm getting random glitchy noises from my MPC2500 digital output.

Has anybody experienced something similar or understand how can I fix it?

Thanks!

are you running the sample rate at the same speed for both output and input?

It has been years since I've worked with digital/spdif... but it could be that kind of issue.

Same problem here with mine, haven't been able to solve it