Rendering a mask with Alpha channel does something weird to my video.

[Dennis2022]

As you can see in the first picture it looks great. Thats how I see it in my preview. As soon I render it it looks like worse. As you can see in the second picture. Anyone know what this is? Im exporting as .webm

[nishu_kush]

Hi Dennis2022,

That's strange! Sorry for the trouble.

What are your system specifications (CPU, GPU, RAM, OS version)? Also, what's the exact version of After Effects you're using? Please try the steps below:

Clear the media cache and export: https://community.adobe.com/t5/premiere-pro-discussions/faq-how-to-clear-your-media-cache-in-premier... 

Change the renderer to Software Only: https://community.adobe.com/t5/premiere-pro-discussions/faq-how-to-change-the-video-renderer-in-prem... 

Let us know how it goes.

Thanks,

Nishu