TBS / TNT channels randomly not working on Xfinity Stream

Within the last few weeks or so, TBS and also TNT just randomly come up blank on Stream.  They work fine on the cable box though.  Is there some issue with these channels?  I was trying to watch AEW last night on TBS but it was totally blank. I tried it on a Fire TV, fire stick, and a phone.  The same issue on all the devices.