Photoshop stopped recognizing my Mac Studio's graphics processor after updating from 27.10

I have a new Mac Studio with an M5 Max chip and 64 GB of memory. Everything was working fine with Photoshop 27.10, but after updating to a newer version, Photoshop started telling me that my graphics processor isn't compatible.

I've tried a few things, including going back to an older version of Photoshop, and here's what I've found.

My Computer

• Mac Studio with Apple M5 Max chip

• 64 GB memory

• macOS 27.2.1

• Two 27-inch 5K monitors

Photoshop Versions I've Tried

• Photoshop 27.10: Works fine. No graphics processor errors.

• Photoshop 27.11.1: Gives me the graphics processor error.

• Photoshop 28.0: Same error.

What Happens

When I open either Photoshop 27.11.1 or 28.0, I get a warning saying my graphics processor isn't compatible.

When I go to Help > GPU Compatibility, I get these messages:

Fail: GPU not supported

Fail: Metal unavailable

Fail: Insufficient VRAM (0 MB of 1500 MB required)

GPU Detected: Unknown GPU (UNKNOWN)

I don't really understand what all of that means, especially since the same computer works perfectly fine with Photoshop 27.10.

What I've Tried So Far

1. I restarted my Mac Studio and opened Photoshop again. Same error.

2. I tried Photoshop 28.0, which gave me the graphics processor warning.

3. I went back and installed Photoshop 27.10. That version opened without any warnings. I also ran the GPU Compatibility Check, and everything passed. It correctly identified my Apple M5 Max graphics processor and showed 55,662 MB of available graphics memory.

4. I then updated to Photoshop 27.11.1 to see if that version would work. Unfortunately, the exact same graphics processor warning came back.

5. Someone suggested going into Photoshop's Settings > Performance and unchecking "Use Graphics Processor," then restarting Photoshop. However, when I went there, the box was already unchecked and grayed out. I can't check or uncheck it even if I wanted to. It also says "Unknown GPU" in that window.

So, as far as I can tell, Photoshop 27.10 recognizes my graphics processor just fine, but the newer versions don't.