Brightness issues subtitles Premiere Pro 2021

[AOE]

Hi all, 

Sorry if this has been asked already, but I have issues with exporting subtitles in Premiere Pro 2021. Subtitles changed in this new version to create a caption track with a new format/style. I chose the format ''subtitle'' and style ''none''. Vanity settings are: fill ''white'', background ''75% opacity, 13pt size''. I exported my sequence via software only in H.264 format. In the exported .mp4 (not visible in the sequence in Premiere Pro) there's a brightness change whenever there is a subtitle. It has a greyish overlay/lower brightness setting over the entire screen. Brightness turns back to normal if there are no subtitles in the image. It's extremely annoying to look at all of those brightness changes in a video.

I can't change the export settings to the recommended as I get the well-known compiling error, or I would try. Does anyone know a fix that doesn't mean that I have to redo everything in text?

Working on:

Macbook Pro

MacOS Big Sur

Intel Core i5 processor

Intel Iris Plus Graphics 645, 1536 MB

Almost 1TB left in storage

[davids38282229]

Ever resolve this? A friend is having similar issues that I'm trying to help figure out.

[R Neil Haugen]

This has popped up from time to time. If I remember correctly, a few people could export in say ProRes and not get this, then did their H.264/5 deliverables from that 'master' ProRes in Handbrake, ShutterEncoder, or ffmpeg.

But ... that's a remembrance and I don't guarantee it will work.

Neil