Brightness and Contrast effects make my video black in Premiere CC

Hello,

I have an old Premiere project from 2016 that I started working on again today.

When I opened it in Premiere CC 2019, the usual message poped up and asked me to convert it to the newest Premiere version.

After converting the project, I noticed a huge issue with the video sequences to which I had added some brightness and contrast effects in Premiere in 2016: these videos are now almost completely black!

When I suppress the brightness and contrast effect, the problem gets solved.

But as soon as I add a new brightness and contrast effect to these video sequences in the newly converted project, the videos become black again...!

The only solution I can think of it to open each video sequence in After Effects CC, and then add a brightness and contrast effect there, and then export the video as a new file, and then import this new file again in Premiere... It will take me a lot more time than if I add a brightness and contrast effect directly in Premiere!

Please does anyone know how to fix this issue? Thanks!

See a screenshot below.