608 and 708 are not rendering in media encoder 25.4

[ARV Super2]

Greetings.  

I hava a timeline that contains both 608 and 708 caption tracks.  The issue I'm having is that both the 608 and 708 cc streams are not embedding in the output file when I export via Media Encoder - Just the 708 stream is being encoded.  The file format being rendered to is MXF XDCAM 422 1080i.  If, however, I do a direct render from Premiere, both streams are embedded as they should be.  Both methods of exporting are using the exact same render preset.

I'm working on a windows 10 system.  I have not had this issue previously.

[PaulMurphy]

I was able to reproduce this issue — when exporting a sequence with both 608 and 708 captions, Premiere Pro includes both in the MXF file. However, when exporting through Media Encoder, only the 708 captions were embedded.

This seems to be related to how streams are assigned in Premiere Pro. Try the following:

1. In the Timeline, right-click each captions track and select Track Settings.
2. Assign different streams to each track — for example:
   • Set the 608 captions to CC1.
   • Set the 708 captions to Service 2.

After making this change, both 608 and 708 captions exported correctly through Media Encoder.

[Stan Jones]

@ARV Super2 @PaulMurphy 

I was NOT able to replicate on Win 11 using PR Beta 25.6.0.55. Two caption tracks, one 608 CC1, the other 708 Service 1.

Exporting using the MXF OP1a options. In both PR and after queuing to AME, the captions options are the default for embed: both show as included.

Tested by importing the export back to PR.

I'll try next on PR 25.4.0, but before I test further, anything different in how either of you exported? 

Stan

[ARV Super2]

Hi Stan.  Making changes as suggested by Paul did not work -- same issue.  I just updated to 25.5, again the same issue.  When exporting direct, cc encodes both streams.  When exporting through M/E only 1 stream encodes.  This has been tried on to different systems -- 1 a windows 10 and the other windows 11.  This is proving very frustrating as I require numerous versions of the same program.  I can no longe set them all up to export through M/E, I have to manually do one at a time - very time consuming.

[ARV Super2]

Hi Paul.

I made your suggested changes to my timeline, selecting "Service 2" for the 708 stream.  Media encoder still only encodes 1 stream but now only the 608 stream.  Previously it would only render the 708 stream.

[PaulMurphy]

That's strange - I did get it to work, but now it doesn't for me either. I have upgraded to 25.5 since I tested it out though.

I ran a test, creating an export preset in Premiere vs AME, and I can see there are a few differences in the .epr file around caption streams. However, when I loaded the preset created in Premiere in AME, it is still not embedding the second caption stream.