I thought the update to 0.8.24 might fix the problem with .23 – it doesn’t appear to have made any difference. Including the last log, although I have no idea what it means or how to fix this. Used the trouble-shooting, cleared the cache, did a reinstall.
Not cool.
As I mentioned in a previous post everything worked fine until the 0.8.23 update.
[2026-03-21 11:16:52.215] [info] Adding extra search path custom_nodes C:\Users\Owen\Documents\ComfyUI\custom_nodes
Adding extra search path download_model_base C:\Users\Owen\Documents\ComfyUI\models
Adding extra search path custom_nodes C:\ComfyUI\resources\ComfyUI\custom_nodes
[2026-03-21 11:16:52.217] [info] Setting output directory to: C:\Users\Owen\Documents\ComfyUI\output
Setting input directory to: C:\Users\Owen\Documents\ComfyUI\input
Setting user directory to: C:\Users\Owen\Documents\ComfyUI\user
[2026-03-21 11:16:53.943] [info] [START] Security scan
[DONE] Security scan
** ComfyUI startup time:
[2026-03-21 11:16:53.944] [info] 2026-03-21 11:16:53.945
** Platform: Windows
** Python version: 3.12.9 (main, Feb 12 2025, 14:52:31) [MSC v.1942 64 bit (AMD64)]
** Python executable: C:\Users\Owen\Documents\ComfyUI.venv\Scripts\python.exe
** ComfyUI Path: C:\ComfyUI\resources\ComfyUI
** ComfyUI Base Folder Path: C:\ComfyUI\resources\ComfyUI
** User directory: C:\Users\Owen\Documents\ComfyUI\user
** ComfyUI-Manager config path: C:\Users\Owen\Documents\ComfyUI\user__manager\config.ini
** Log path: C:\Users\Owen\Documents\ComfyUI\user\comfyui.log
[2026-03-21 11:16:56.672] [info] [ComfyUI-Manager] Skipped fixing the ‘comfyui-frontend-package’ dependency because the ComfyUI is outdated.
[2026-03-21 11:16:56.674] [info] [PRE] ComfyUI-Manager
[2026-03-21 11:16:58.428] [info] Found comfy_kitchen backend cuda: {‘available’: False, ‘disabled’: True, ‘unavailable_reason’: ‘CUDA not available on this system’, ‘capabilities’: }
Found comfy_kitchen backend triton: {‘available’: False, ‘disabled’: True, ‘unavailable_reason’: “ImportError: No module named ‘triton’”, ‘capabilities’: }
[2026-03-21 11:16:58.429] [info] Found comfy_kitchen backend eager: {‘available’: True, ‘disabled’: False, ‘unavailable_reason’: None, ‘capabilities’: [‘apply_rope’, ‘apply_rope1’, ‘dequantize_mxfp8’, ‘dequantize_nvfp4’, ‘dequantize_per_tensor_fp8’, ‘quantize_mxfp8’, ‘quantize_nvfp4’, ‘quantize_per_tensor_fp8’, ‘scaled_mm_mxfp8’, ‘scaled_mm_nvfp4’]}
[2026-03-21 11:16:58.434] [info] Checkpoint files will always be loaded safely.
[2026-03-21 11:16:58.463] [error] Traceback (most recent call last):
[2026-03-21 11:16:58.464] [error] File “C:\ComfyUI\resources\ComfyUI\main.py”, line 197, in
import execution
File “C:\ComfyUI\resources\ComfyUI\execution.py”, line 17, in
import comfy.model_management
File “C:\ComfyUI\resources\ComfyUI\comfy\model_management.py”, line 256, in
[2026-03-21 11:16:58.464] [error] total_vram = get_total_memory(get_torch_device()) / (1024 * 1024)
[2026-03-21 11:16:58.466] [error] ^^^^^^^^^^^^
[2026-03-21 11:16:58.467] [error] ^^^^^^
File “C:\ComfyUI\resources\ComfyUI\comfy\model_management.py”, line 206, in get_torch_device
[2026-03-21 11:16:58.467] [error] return torch.device(torch.cuda.current_device())
[2026-03-21 11:16:58.468] [error] ^^^^^^^
[2026-03-21 11:16:58.469] [error] ^^^^^^^^^^^^
[2026-03-21 11:16:58.469] [error] ^^^^^^^^
File “C:\Users\Owen\Documents\ComfyUI.venv\Lib\site-packages\torch\cuda_init_.py”, line 1071, in current_device
[2026-03-21 11:16:58.470] [error] _lazy_init()
[2026-03-21 11:16:58.470] [error] File “C:\Users\Owen\Documents\ComfyUI.venv\Lib\site-packages\torch\cuda_init_.py”, line 403, in _lazy_init
raise AssertionError(“Torch not compiled with CUDA enabled”)
AssertionError
[2026-03-21 11:16:58.471] [error] : Torch not compiled with CUDA enabled