Free viewing angle in engraving mode, mask range blinking

When using AMD graphics cards, the only drivers of 6900xt have been installed and there will still be flickering.
The front view and side view will not flicker.
The historical version of Blender and the latest 3.0 will also have the same problem

I also have this problem with my 6800xt

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I do not know why from 2.93.1 to now 2.93.4 have this problem, just edit mode inactive simple alleviated a lot