A pop-up window saying "reconnecting" appears and then closes automatically, stopping the process.
Solution:
Normally this means your ComfyUI is restarting. As for the reason why it restarted, you need to take a closer look at the ComfyUI log file (on the top right of the RunComfy ComfyUI page there is a “Log” button).
- OOM. Switch to a larger machine or reduce the image/video resolution.
- ComfyUI crash due to coding error. Check the log, find more information in the error call stack.