Hello thanks, sorry for the late response, I didn't expect to get a reply. I will try your tip soon.

And yes they are supposed to look like the first 2 screenshots.

I made 3 boxes in hammer, imported the VMF into blender with this https://github.com/lasa01/io_import_vmf

It looks good.

https://media.discordapp.net/attachments/696544483550167061/849023103152553994/vmf.jpg

https://media.discordapp.net/attachments/696544483550167061/849024483754246144/blender.jpg

But when I export the SMD with Blender Source Tools and import it again, it looks like this.

https://media.discordapp.net/attachments/696544483550167061/849024875041259570/unknown.png

Compiling the model with crowbar also results in that shape.

Files:

https://cdn.discordapp.com/attachments/696544483550167061/849023140671258654/blender.vmf

https://cdn.discordapp.com/attachments/696544483550167061/849024586888380416/blenderfile.zip

https://cdn.discordapp.com/attachments/696544483550167061/849024555488903208/worldspawn.smd

Is there any way to import all the SMD files from an QC file?

I have a QC file like this, and only the last SMD gets imported. If I manually import the other smds, it replaces the last one that was imported.