Unable to transcode HDHomerun through Docker

Server Version#: 4.108.0
Player Version#:
Tuner Make/Model: HDHomeRun FLEX 4K
Guide/Lineup name:
Using XMLTV?: no
Channel number/Name:

Hello - first time posting here. Just bought the HDHomeRun FLEX 4K the other day, and trying to get it working on my PMS that I’m running through Docker (plexinc/pms-docker). I can find the tuner, get the channel lineups, no problem. When I try to record/watch live, it just fails out. This is what I see in the master logs:

Sep 24, 2023 08:23:08.053 [140168272964408] ERROR - [Req#4be14/Transcode/uq02zzw26arxgh0vnl6qho0p/a0763592-b649-4f32-a52d-bc3dec6f6812] Unrecognized option ‘crf:0’.
Sep 24, 2023 08:23:08.054 [140168260889400] ERROR - [Req#4be15/Transcode/uq02zzw26arxgh0vnl6qho0p/a0763592-b649-4f32-a52d-bc3dec6f6812] Error splitting the argument list: Option not found
Sep 24, 2023 08:23:08.054 [140168432380728] DEBUG - Jobs: ‘/usr/lib/plexmediaserver/Plex Transcoder’ exit code for process 130507 is 1 (failure)
Sep 24, 2023 08:23:08.054 [140168276527928] DEBUG - [Req#4be10/Transcode] TranscodeSession: session failed while waiting for duration
Sep 24, 2023 08:23:08.054 [140168237685560] DEBUG - Streaming Resource: Terminating session 0x7f7b7fbfcdf8:5e4ta37n19f3yc6e9y48tk03 which is using 10000000kbps of WAN bandwidth. Used is now 0kbps
Sep 24, 2023 08:23:08.054 [140168276527928] ERROR - [Req#4be10/Transcode] Failed to start session.

When I install PMS on a machine directly, I am able to use it just fine. I’d rather not have to do that, so just seeing if there is something I’m missing. Thanks!

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