Mac TSMuxer Issues

[ClerkDante]

Good Morning,

For more than a year I've had a virtually flawless backup process using MakeMKV, imkvextract, handbrake and TSMuxer (Unofficial Snow Leopard build). I remember when initially setting up my Macbook Pro I had to run a bunch of terminal stuff to get the process up and running.

Well over the holidays I got a new iMac, which I setup via Migrate. Well now, following the same work flow, when I get to TSMuxer, when Muxing starts I get a note saying "B-pyramid Level 1, Shift DTS 2" or something like that, and then at 2.9% the program ends with an "assertion failed" error.

I've never seen this error before, but I've now tried it with 3 different MKV files, and it happens every time.

Can someone much smarter than I possibly shed some light on what I might be doing wrong?

Addendum: Here is the tsMuxeR output: SmartLabs tsMuxeR. Version 1.10.6 http://www.smlabs.net
Decoding H264 stream (track 1): Profile: Main@4.1 Resolution: 1920:1080p Frame rate: 90000
H.264 muxing fps not set. Get fps from stream.
H.264 stream does not contain fps field. Muxing fps=90000
H264 bitstream changed: insert nal unit delimiters
H264 bitstream changed: insert pict timing and buffering period SEI units
Decoding DTS-HD stream (track 2): Bitrate: 1536Kbps core + MLP data.Sample Rate: 48KHz Channels: 5.1 (DTS Master Audio)
B-pyramid level 1 detected. Shift DTS to 2 frames
H264 bitstream changed: insert SPS/PPS units

and this is the error report: Assertion failed: ((int64_t)(curM2TSPCR+0.5) == pcrVal * 300), function processM2TSPCR, file ../vodTransport/src/tsMuxer.cpp, line 446.