Amazon Freevee ADs UK Roku Express

Does anyone have pointers for what hostnames to block to prevent ADs on Freevee? I have a Roku Express which is working fine for the other channels that I use. I will look at the logs in some detail later but wondered if this has already been fixed?

Thanks

Update: I spent quite some time following the log files with a stream running and blacklisted a few domain names when the ADs appeared but only succeeded in breaking the FreeVee stream. I've removed the blacklisted names as none of them seemed to have an effect on the ADs so I'm now at a total loss!