Captions 708 output doesn't respect the timeline timecode (Premiere Pro 2021 v15.1 and v15.2)
When outputting both 608 and 708 captions in a XDCAM-60i MXF OP1a with embedded closed captions, the 608 captions output is fine, but the 708 are offset by 6 frames when compared to the timecode in the Premiere Pro timeline.
This is the same problem since Premiere Pro 2019, still have to use 2018 to export MXF with 708 in the right place.
Workflow is an imported MCC file from MacCaption (29.97 drop frame) output to XDCAMHD 4:2:2 50Mbps NTSC MXF OP1a.
Output file is tested both with Telestream Switch and Premiere Pro (output file imported back in a timeline), both shows the same offset.
Please FIX this PRO feature of Premiere "PRO".