I’d suggest submitting another report to them. Maybe they’re not aware of the issue? Definitely sounds like an issue with that feed. Those issues aren’t happening live on Suburban other than the occasional open mic.
I do have Suburban in my feed list on mine as well but living in a hole in a different part of the county reception is hit and miss on the quality. I’m hoping once the new radio system goes online in 2022 I’ll have better reception of the various zones.