[Bug]: Stuck on Reconnecting after Run

[leejunlaw-Ace]

ComfyUI and Frontend Versions

Hi...

I am very new on this, dont know how to resolve this issue.
Required your help on this...

Description

Stuck on Reconnecting after Run

Steps to Reproduce

Stuck on Reconnecting after Run

Debug Logs

Stuck on Reconnecting after Run

Browser Logs

Stuck on Reconnecting after Run

Setting JSON

Stuck on Reconnecting after Run

What browsers do you use to access the UI ?

No response

[lgwjames]

same here, fresh install and opened template and let download files

[Teals53]

same here and seems like if the models are so big it happens it just works for smaller shitty models but aint working for cool ones which is worth to use

[comfyui-wiki]

Can you guys share your logs and device info? The current information is quite limited, and I don't know exactly what workflow you ran and whether your GPU is powerful enough.

It might not be a template issue.

[crcknaka]

the same here with flux2 dev template. rtx 4080 16GB VRAM, 32GB RAM , 64-128gb Windows pagefile

[Lokuc]

Can you guys share your logs and device info? The current information is quite limited, and I don't know exactly what workflow you ran and whether your GPU is powerful enough.

It might not be a template issue.

comfy UI 0.4.0. rtx 4080 16GB VRAM, 128GB RAM, 20GB Windows pagefile
after press Run it load full VRAM and around 70GB RAM, running around 10 seconds and then crash Comfy UI

Adding extra search path checkpoints E:\ai\wanimate\Data\Models\StableDiffusion
Adding extra search path diffusers E:\ai\wanimate\Data\Models\Diffusers
Adding extra search path loras E:\ai\wanimate\Data\Models\Lora
Adding extra search path loras E:\ai\wanimate\Data\Models\LyCORIS
Adding extra search path clip E:\ai\wanimate\Data\Models\TextEncoders
Adding extra search path clip_vision E:\ai\wanimate\Data\Models\ClipVision
Adding extra search path embeddings E:\ai\wanimate\Data\Models\Embeddings
Adding extra search path vae E:\ai\wanimate\Data\Models\VAE
Adding extra search path vae_approx E:\ai\wanimate\Data\Models\ApproxVAE
Adding extra search path controlnet E:\ai\wanimate\Data\Models\ControlNet
Adding extra search path controlnet E:\ai\wanimate\Data\Models\T2IAdapter
Adding extra search path gligen E:\ai\wanimate\Data\Models\GLIGEN
Adding extra search path upscale_models E:\ai\wanimate\Data\Models\ESRGAN
Adding extra search path upscale_models E:\ai\wanimate\Data\Models\RealESRGAN
Adding extra search path upscale_models E:\ai\wanimate\Data\Models\SwinIR
Adding extra search path hypernetworks E:\ai\wanimate\Data\Models\Hypernetwork
Adding extra search path ipadapter E:\ai\wanimate\Data\Models\IpAdapter
Adding extra search path ipadapter E:\ai\wanimate\Data\Models\IpAdapters15
Adding extra search path ipadapter E:\ai\wanimate\Data\Models\IpAdaptersXl
Adding extra search path prompt_expansion E:\ai\wanimate\Data\Models\PromptExpansion
Adding extra search path ultralytics E:\ai\wanimate\Data\Models\Ultralytics
Adding extra search path ultralytics_bbox E:\ai\wanimate\Data\Models\Ultralytics\bbox
Adding extra search path ultralytics_segm E:\ai\wanimate\Data\Models\Ultralytics\segm
Adding extra search path sams E:\ai\wanimate\Data\Models\Sams
Adding extra search path diffusion_models E:\ai\wanimate\Data\Models\DiffusionModels
Checkpoint files will always be loaded safely.
Total VRAM 16376 MB, total RAM 130829 MB
pytorch version: 2.9.1+cu128
Set vram state to: NORMAL_VRAM
Device: cuda:0 NVIDIA GeForce RTX 4080 SUPER : cudaMallocAsync
Using async weight offloading with 2 streams
Enabled pinned memory 58873.0
working around nvidia conv3d memory bug.
Using pytorch attention
Python version: 3.12.11 (main, Jul 23 2025, 00:32:20) [MSC v.1944 64 bit (AMD64)]
ComfyUI version: 0.4.0
ComfyUI frontend version: 1.33.13
[Prompt Server] web root: E:\ai\wanimate\Data\Packages\ComfyUI_flux2\venv\Lib\site-packages\comfyui_frontend_package\static
Total VRAM 16376 MB, total RAM 130829 MB
pytorch version: 2.9.1+cu128
Set vram state to: NORMAL_VRAM
Device: cuda:0 NVIDIA GeForce RTX 4080 SUPER : cudaMallocAsync
Using async weight offloading with 2 streams
Enabled pinned memory 58873.0

Import times for custom nodes:
   0.0 seconds: E:\ai\wanimate\Data\Packages\ComfyUI_flux2\custom_nodes\websocket_image_save.py

Context impl SQLiteImpl.
Will assume non-transactional DDL.
No target revision found.
Starting server

To see the GUI go to: http://127.0.0.1:8188
got prompt
Using pytorch attention in VAE
Using pytorch attention in VAE
VAE load device: cuda:0, offload device: cpu, dtype: torch.bfloat16
Requested to load AutoencoderKL
loaded completely; 10868.89 MB usable, 160.31 MB loaded, full load: True
CLIP/text encoder model load device: cuda:0, offload device: cpu, current: cpu, dtype: torch.float16
Requested to load Flux2TEModel_
loaded partially; 13453.80 MB usable, 11850.59 MB loaded, 21230.00 MB offloaded, 1600.00 MB buffer reserved, lowvram patches: 0