Hi @Bryn89 , welcome to the Sonos Community!
I’m sorry to hear of the issues affecting your Move 2, based on the fact that Bluetooth playback sounds good I am thinking that a hardware failure is unlikely. Looking at a recent diagnostic report on your account I did notice that the Move 2 was on a different software version than the rest of your system, as such it would be worth checking for updates on the Sonos app to ensure all products are running the same version.
If this has been confirmed, the next thing to rule out would be the environment around the Move 2, just in case it is affected by wifi interference in some way. Do you notice the Move 2 playback misbehaving if the speaker is temporarily relocated close to your wifi router?
If these things have been checked and do not make any difference then I would recommend reaching out to our technical support who have tools at their disposal that will allow them to give you more detailed steps to follow to test and hopefully resolve your Move 2 issue.
I hope this helps!
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