Hi @Jonnydrama32
I cannot find any documented issues that describe the same symptoms that you are now describing - I recommend you get in touch with our technical support team who have tools at their disposal that will allow them to give you advice specific to your Sonos system and what it reports.
I hope they are able to assist - even if not, they can at least document things in case a pattern is found with other users. I do hear you saying other people have reported it too, but if they didn’t get in touch, little progress will have been made - it’s best not to leave it to others.
Once you call in, we will look into this with priority, however - the Arc Ultra is our new flagship product and we want everyone to be happy with their purchases.
In the meantime, you may find you are happier with the sound when TruePlay is off - please try it for a while and see, but do give yourself time to adjust.
I hope this helps.
"Common sense is the collection of prejudices acquired by age eighteen." - Albert Einstein