Been having this recurring problem with Infuse on my Apple TV 4k. I go to play any video from my iMac share and get the spinner, then eventually it times out and gives me a generic error message. Force-quitting the app doesn’t help, and rebooting Apple TV doesn’t help. The only fix is to forget the share in the Infuse settings and re-add the share again. For some reason, Infuse loses its ability to reach the share, even though nothing has changed. Could it be some setting on my iMac?
Apple TV 4k and Infuse are updated to the latest software versions. iMac is running Big Sur 11.6.