Posterize Time Bug

[f_magician]

macOS Sonoma 14.2.1

Premiere Pro 24.5.0 (& Beta)

The problem occurs when the transform and posterize time filters are used together.
A sample is attached.

[R Neil Haugen]

Transform and Posterize both do major image re-creation processing. Stacking them can lead to a number of problems.

So ... there are a couple practical solutions to using two such heavy effects ...

1.  Apply one, probably Transform, then Nest, then apply Posterize;
2. Apply Transform to get the image changes you want, do a render & replace including applying effects checked, then put Posterize on the new, transformed clip.

[Kevin-Monahan]

Hello @f_magician,

I'm Kevin from support, one of the moderators here. I appreciate you filing your bug report. Have you tried nesting, as Neil suggested? If it works, that should you free you up from the issue. When combining effects, it is often necessary to use nesting to create an effect. The reason has to do with the way the application code works with video effects. Other NLEs have exactly the same issue. You could consider it the "Nature of the NLE beast." Sorry for the frustration on the problem. I hope the advice you found here is useful. Good luck.

Take Care,
Kevin

[Kevin-Monahan]

The status of this bug report has been updated.

[f_magician]

Neil and Kevin,

Thank you for your advices.

Finally I applied posterize time for the sequence containing the transform effect, and this is a good result.