Hello
It does not look like Start Frame is taken into account in the Export Movie Dialog.
To debug this I made a Text TOP be output me.time.frame
and ran some exports. No matter what I set start frame to the frame in the export would always start at 1.
Thank you!
Edit:
Sorry I didn’t put any more info. I tried this with builds 2022.29530 and 2021.16960. I am on Windows.