Confirming that the zip file downloads fine. Can you try uploading the .c4d file without zipping first? I think that I have the .c4d extension configured properly, but I don’t have a file to test with.
Hmmm, I’m going to have to look into this some more. I’m showing that the file type is enabled, and it turned out that my educated guess on the mime type was exactly correct, so all signs are pointing to it being configured correctly….but like you, I’m getting an error message when I try.
I’ll read up on the settings to see if there’s something I’m not doing right. Otherwise, I’ll report it as a bug. I’ll let you know!
In the meantime, zip is going to be the way to go. Glad to see that that one’s working anyway!