Mercury engine (Metal) GPU acceleration on Apple Mac M1pro 2021

Using the latest version of Adobe Premiere on Apple M1pro 2021 14'', there is a bug that occurs when exporting, with Media Encoder using "Mercury engine (Metal) GPU acceleration".
The bug is a glitch effect derived from sub graphics.
When I open Premiere 2022 "intel version" with "Rosetta2" the program works properly but is slower.

If I export directly on premiere software says that hardware acceleration is not supported.
On Media Encoder is possible export with Mercury engine (Metal) GPU acceleration but glitches!

The solution only software on Media Encoder is very very slowly.
I tried open the same project with last version of Premiere 2021 and I feedback the same problem.

I find the editing is too slow for a machine that promises great performances like this 😞