Can't Upload - Module Validation Failed

My project is for some reason not uploading. It was doing fine until I applied a material instantce and used a bunch of rectangle ligths. Not sure if this is the issue tho.
I Don’t have any custom assets besides a picture and two sfx, but the uploading was working fine with them in the project

@1-UPProtocol Thank you for your report! We would like to look into this further, would you be able to submit a bug report using the form available here: Fortnite Creative