Solved - Can't upload video files/files larger than 10MB

Solved: Disabled ModSecurity in nginx proxy manager and now uploads are working again

  • Nextcloud Server version (e.g., 29.x.x):
    • AIO v11.2.1
  • Operating system and version (e.g., Ubuntu 24.04):
    • Garuda Linux
  • Is this the first time you’ve seen this error? (Yes / No):
    • Yes
  • When did this problem seem to first start?
    • Today
  • Installation method (e.g. AlO, NCP, Bare Metal/Archive, etc.)
    • AIO

I’m getting the following error when syncing some video files to my server.
1e8538afad68c9e24308576b9e44dfe8fdd1538f

The error in the browser is this:

I have previously been able to upload videos from the same camera just fine in April and I can upload/sync docx files without any issues.