WebGl Image blit error on Safari

Hello guys,
I´m working on an WebGl project with Unity 2021.1.12, I upload an build as gzip on an web server.
I test this build on Firefox, Opera, Crome and Safari but i only get this error at Safari the name of that error is “Image blit conversion between formats 73 → 47 is not supported”.

At the begining we use the Unity 2019 version and we had no problems with safari.

I hope u guys can help me.
Thank you very much.

Did you ever find a workaround for this? I’m facing the same issue.