When you set use_backdrop_enabled to true, I understand it as that you can use the backdrop image from emby for the upcoming card that is set to fanart mode. If that is the case, the upcoming-card expects a fanart json tag and not a poster tag. So you should set the tag to fanart instead of poster when you set use_backdrop_enabled to true
Version of the custom_component
Configuration
Describe the bug
When you set use_backdrop_enabled to true, I understand it as that you can use the backdrop image from emby for the upcoming card that is set to fanart mode. If that is the case, the upcoming-card expects a fanart json tag and not a poster tag. So you should set the tag to fanart instead of poster when you set use_backdrop_enabled to true
Docs for the upcoming card: https://github.com/custom-cards/upcoming-media-card:
Debug log
2022-10-06 16:12:13.261 INFO (SyncWorker_2) [homeassistant.loader] Loaded emby from homeassistant.components.emby 2022-10-06 16:12:38.514 INFO (MainThread) [homeassistant.components.media_player] Setting up media_player.emby 2022-10-06 16:12:38.541 INFO (MainThread) [pyemby.server] Latching onto an existing event loop. 2022-10-06 16:12:53.621 INFO (MainThread) [pyemby.server] Emby client registered!, Id: 90520743603948 2022-10-06 16:13:19.910 ERROR (MainThread) [frontend.js.latest.202210050] https://ha.xx/lovelace-home/embynew:0:0 Uncaught