I looked through the logs, and I’ve no idea why things won’t transcode.
I do not see any obvious errors. Everything looks (to me) like it is playing OK, yet you still have nothing on-screen.
PMS 1.17.0.1709 did update to the current version of FFMPEG (Announcement). However, I’ve no idea if that would make any difference if you updated your system from 1.16.4.
Wish I could be of more help. Hopefully somebody else can look at the logs and figure out what is happening.
