Windows fatal exception: access violation while loading HunyuanVideoClipModel (always ~7%) on RTX 3060 12GB

[gavindrums]

Environment
Windows 11 24H2
RTX 3060 12 GB (desktop)
16 GB RAM
ComfyUI Windows Portable (NVIDIA)
ComfyUI-FramePackWrapper_PlusOne 2.0.1
VideoHelperSuite installed and working
Using the bundled framepack_F1_example.json

Model:

FramePackI2V_HY_fp8_e4m3fn.safetensors
Problem

The workflow starts normally.

The model begins loading.

Progress consistently reaches approximately 7%.

ComfyUI then terminates with:

Windows fatal exception: access violation

The browser reports Reconnecting because the backend crashes.

The crash occurs during construction of the Hunyuan model.

Stack trace includes:

torch\nn\modules\linear.py
diffusers\models\attention_processor.py
hunyuan_video_packed.py
nodes.py

Specifically around:

self.proj_out = nn.Linear(hidden_size + mlp_dim, hidden_size)
Things already tested
Fresh ComfyUI Windows Portable
VideoHelperSuite reinstalled
Missing dependencies installed
Correct FramePack model selected
Workflow loads correctly
Video Combine fixed
base_precision
bf16
fp16
load_device
offload_device
main_device
Transformers downgraded from 5.9.0 to 4.49.0
CUDA test:
torch.nn.Linear(4096,4096,device="cuda",dtype=torch.float16)

passes successfully.

Memory is not exhausted.

No CUDA OOM occurs.

The crash is always a native Windows access violation.

Question

Is this a known issue with:

FramePackWrapper_PlusOne 2.0.1
HunyuanVideoClipModel
Torch 2.12 / CUDA 13
or RTX 3060 systems?

Has anyone reproduced this or found a workaround?