PMS 1.32.6+ HW transcoding issues and corrections

Hardware transcode still doesn’t work for me

Synology DS918+ w. Celeron J3455 and DSM7
PlexMediaServer-1.32.6.7557-1cf77d501-x86_64_DSM7.spk

If I un-check hardware transcode then it will work, but not with it enabled.
Revert back to 1.32.1.6999 and it works with hardware transcode on (as it always did up until 1.32.2)

When it fails I see this in logging.

Oct 01, 2023 00:56:02.872 [140123444632376] Info — [Req#3cf/Transcode/dyq14916knmi7ris020l3juf] Preparing driver imd for GPU HD Graphics 500
Oct 01, 2023 00:56:04.965 [140123353287480] Warning — [Req#3d0/Transcode/dyq14916knmi7ris020l3juf] Transcode runner appears to have died.
Oct 01, 2023 00:56:04.978 [140123444632376] Warning — [Req#3cf/Transcode/dyq14916knmi7ris020l3juf] Transcode runner appears to have died.
Oct 01, 2023 00:56:04.995 [140123344849720] Warning — [Req#402/Transcode/dyq14916knmi7ris020l3juf] Transcode runner appears to have died.
Oct 01, 2023 00:56:05.008 [140123349068600] Warning — [Req#405/Transcode/dyq14916knmi7ris020l3juf] Transcode runner appears to have died.
Oct 01, 2023 00:56:05.094 [140123346959160] Info — [Req#480/Transcode] Preparing driver imd for GPU HD Graphics 500