black-forest-labs/FLUX.1-dev · ZeroGPU worker error: RuntimeError immediately after “Generate”

Hi,
I keep getting the following error immediately after clicking “Generate”:

ZeroGPU worker error: RuntimeError

What I tried:
Two different browsers (including Incognito mode)
Two different accounts (both with full ZeroGPU minutes)
Restarted computer and logged in again
Same issue occurs with both FLUX.1 [dev] and FLUX Uncensored
This strongly suggests it’s an issue with the Space code rather than my account or device.

Could you please check:
Proper use of @spaces.GPU (called directly in app.py)
Ensure CUDA calls are only inside the GPU function
Mask/input handling for Inpainting mode
Logs for memory or device errors

Thanks in advance!