Uploading projec to sbox.game gives thousands of HTTP 400 errors

So ive been trying to "Publish" my project to sbox.game through the editors publish wizard. After I get to the point of post compilation file upload i have 5111 files to be uploaded with a grand total weight of 4.21 GB.

When I click upload files, files that are 2mb and above are getting uploaded, however all of the 2mb and below show 1b/x b and never upload. The editor is throwing HTTP 400 like it was crazy:

Tried restarting editor, sbox, but in general have no idea how to fix it or how to proceed.

2Gbit down/600mbit up (2.5Gbit ethernet network card)
AMD Ryzen 7 5800x3d
NVIDIA RTX 5070
32GB ram 3200/cl16
Windows 11 Pro 25H2

Well we've managed to fix the issue by:

1. Stashing the entire project apart from Code to git stash.
2. publishing the game with like idk 100mb of files including mainly code
3. Taking all the files assets etc out of the stash.
4. publishing again.

No config, no setting, so file in a bad place/folder, no editor error. Just a random problem that caused all files to return error 400.