I've recently noticed a whole collection of video streaming apps all failing at once on my Samsung S8+. YouTube, Amazon Prime Video and All4 are all now dead -Amazon will start up but not play anything, streamed or downloaded, while the others won't even start up. Apps have been updated, the device restarted.
It seems unlikely that three very similar apps have all died at the same time while the rest are fine without there being a common cause. Is there anything I could usefully check to try and get things working again?