Round-trip export/import of Open Captions needs to be WYSIWYG.
In Adobe Premiere, Open Captions that I export out of Premiere and then immediate import back into Premiere do not match how they were exported.
Steps to repeat:
1 - In Premiere, create an Open Caption track. Create a two-line caption.
2 - Export caption using File > Export > Captions
3 - Immediately Import that caption file back into Premiere.
4 - Observe that the imported caption does not exactly match the original.
(Mostly tested in Adobe Premiere 2017, but I have verified that this problem persists in Premiere 2019 as well.)
Bang Zoom commented
Problem still persists in Adobe Premiere 2019.
Also, contrary to Philip's comment, this issue does not at all pertain to the SubRip format. This pertains to exporting a W3C Timed Text XML out of Premiere, and then re-importing that XML right back into Premiere. All of the text positioning becomes completely messed up. I'd like what I export to be what I re-import.
This is all that's holding us back from finally migrating off of FCP7.
Philip Neves commented
The SubRip format does not support that level of styling. https://en.wikipedia.org/wiki/SubRip