I was asked to post more about the fires we're fighting, so here you go:
We've had numerous users report playback issues on RTAA, but we have never been able to recreate the issue ourselves...until this week. Good news is it's an easy fix going forward! Bad news is the solution as of today is to deliver RTAA in 1080 instead of 4K. More bad news: we still don't really know what the problem is.
There seems to be an issue with the static footage we use to separate scenes in many episodes, but we've been unable to pinpoint anything specific that would cause it. The error was tough to recreate because it occurred only in specific resolutions, and our transcoder makes manifest files at multiple resolutions and serves you the best one for your device/connection/etc. When I watch one episode I might not be served the 1080 version, which has an error at 120s, so it might play OK for me but not for someone else. When we saw reports of last Monday's episode giving trouble, @mikequinn watched it at every resolution until he was able to recreate the issue.
Keep letting us know when you see playback errors, I will not rest until they are all fixed.