Hello! The issue is similar to this. I can't upload large textures (4K PNG or JPG, ~2.5 MB), I think due to 64 Kbit uplink connection. Is there a way to increase timeout or something like this? Uploading of 8.5 MB archive with textures also fails on less than 10% of upload with error "Upload error. Transfer interrupted". I really have no chance for faster internet, unfortunately.