Atem Mini Extreme - sound from headphone port

The audio from my Atem Mini Extreme’s headphone port sound poor - noisy and distorted. The some coming in is clean and the sound output over hdmi is also clean. Any ideas what could be wrong or does the unit need repair?

Hey when last have you updated your Extreme ? I had that issue before and then did an update, headphone issue was solved.

Thanks I’ll give that a try.