I am having the same issue with the new Chromecast. It seems directly related to HEVC shows.
I recently upgraded a few shows to HEVC and can replicate this issue. When the show goes to autoplay the next episode, it fails and displays the ‘an error occurred while attempting to play this video. Please check your connection and try again.’ message. If I click okay and load the episode from the season/show menu it spins up and plays just fine (no transcoding).
I can post logs when I get to a computer.
*** EDIT***
Here’s the excerpt from the log where it throws an ERROR
Blockquote
Mar 04, 2021 22:52:41.152 [11888] DEBUG - It took 156.250000 ms to retrieve 42 items.
Mar 04, 2021 22:52:41.153 [11888] DEBUG - Setting container serialization range to [0, 41] (total=42)
Mar 04, 2021 22:52:41.157 [11732] DEBUG - Auth: authenticated user 1 as USERID
Mar 04, 2021 22:52:41.157 [6900] DEBUG - Request: [192.168.1.100:64493 (Subnet)] GET /library/sections/2/all?type=2&includeCollections=1&includeExternalMedia=1&includeAdvanced=1&includeMeta=1 (33 live) TLS Page 0-297 GZIP Signed-in Token (USERID)
Mar 04, 2021 22:52:41.158 [6900] ERROR - Unknown metadata type: folder
Mar 04, 2021 22:52:41.159 [6900] DEBUG - Setting container serialization range to [0, 297] (total=-1)
Mar 04, 2021 22:52:41.162 [11732] DEBUG - Completed: [192.168.1.100:64490] 200 GET /library/sections/26/all?type=4&sort=originallyAvailableAt:desc&includeExternalMedia=1 (34 live) TLS GZIP Page 0-41 50ms 10763 bytes (pipelined: 1)
Mar 04, 2021 22:52:41.169 [8640] WARN - SLOW QUERY: It took 250.000000 ms to retrieve 41 items.
Mar 04, 2021 22:52:41.174 [8640] DEBUG - It took 93.750000 ms to retrieve 20 items.
Mar 04, 2021 22:52:41.175 [11732] DEBUG - Auth: authenticated user 1 as USERID
Mar 04, 2021 22:52:41.175 [11888] DEBUG - Request: [192.168.1.100:64490 (Subnet)] GET /library/sections/2/firstCharacter?includeCollections=1&includeExternalMedia=true (36 live) TLS GZIP Signed-in Token (USERID)
Mar 04, 2021 22:52:41.176 [11732] DEBUG - Auth: authenticated user 1 as USERID
Mar 04, 2021 22:52:41.176 [8924] DEBUG - Request: [192.168.1.29:49620 (Subnet)] GET /library/metadata/653771?includeChapters=1&includeLoudnessRamps=1&includeMarkers=1&includeRelated=1 (36 live) TLS GZIP Signed-in Token (USERID)
