Burn in subtitles with Apple compressor

Dear Forum Members, i have a serious problem. I have to deliver a cut video today and tryed around a lot with the subtitles. But i did not reach the goal:

I want to burn in a subtitle in itt, SRT or 608, no matter what, without the option to switch the titeling off. The client wants to use the film in a Powerpoint and the title should alway be visible in what ever player will be used. I my self translated and duplicated the video to all three Subtitle versions, but whatever i use (SRT, ITT or 608) when i open the video after compressing it in Compressor to .MPG4 720@25 fps, with and ticked 608 embedding (screenshot), it is not possible to have the titles burned in to the video like a generated title that i put to the normal timeline.

Can anybody help me out? Do i have to transfer alle the text to a normal title frome the lift sidepane to be able to alway see the title?

Thank you much for your help.

Fabian

finalcut 10.6.3

compressor 4.6.1

imac 27 4Ghz i7 late 2015