Is there an existing issue for this problem?

• I have searched the existing issues

Operating system

Windows

GPU vendor

Nvidia (CUDA)

GPU model

GTX 1660

GPU VRAM

6GB

Version number

4.2.6

Browser

Firefox

Python dependencies

No response

What happened

I am using SD 1.5 models in safetensor format without converting them to diffusers.

Image generation fails with a server error when starting InvokeAI offline.
Image generation starts only when connected to the internet for the first generation however subsequent generations can work offline until switching models.
The error reappears when switching models while offline.

What you expected to happen

InvokeAI should work offline.

How to reproduce the problem

No response

Additional context

No response

Discord username

No response