Imported models give Error 30 when uploading to Sketchfab

[many-bees]

For weeks now I've been trying to upload this one specific rigged model to Sketchfab but every time I try it results in Error 30, which according to the Sketchfab support website is pretty rare and usually caused by models or rigs being too big and complicated. I have been troubleshooting it for weeks and the only breakthrough I've managed to make is that I'm able to upload the model if I remove the armature. After successfully uploading a rigged Silent Hill 3 model today I'm beginning to wonder if there's something about how this software imports rigs that causes the error. I've tried just about everything else I can think of.

Here's the model that's been causing the issue if it's any help.
Lisa HD Sketchfab.zip

[HenryOfCarim]

Hard to say, I guess, it's because those dds.003.dds in textures names, you can try to export it as Collada, and put the renamed textures into zip file with it

[many-bees]

I've managed to upload the model fine with those textures, it's only when the armature is included that I have issues.

[Brachi]

I'd try to use the modern glTF format instead of the blend file directly. Being an exchange format is one of its main purposes.