K-Sampler crashes ComfyUI

I downloaded ComfyUI on my PC. I work with the following hardware: Hardware Intel(R) Core™ Ultra 9 285K (3.70 GHz), 64,0 GB RAM, 2TB SSD, NVIDIA Geforce RTX 5090 32GB. After reinstalling ComfyUI and using a workflow template, there were no problems occuring, but after a while the same problem appeared. Do you have any ideas, why the K-Sampler crashes?

Adding an image regarding the crash. It just says “reconnecting” but I have to restart ComfyUI afterwards. I double checked all the model links and they are all in the right folders.

Does anyone has the same problem or even better a solution for this problem? It occurs on selfmade workflows as well as on templates.

1 Like

Error messages related to K-Sampler may sometimes indicate causes unrelated to K-Sampler itself.