I don't, but given all the apps on Roku and all the shows within each app, the chance that I am trying to watch the same show on the same app is quite small.
I think you'd have better luck getting help or even a "me too" if you mentioned which shows and on which channel/apps. A Roku model number could help too.
I do recall years ago, that there was one movie on the the Shout Factory app, that would crash my Roku every time, but it's been a long time since I've run into one of those.
Banned but back. Because why not?