works on 0.15.3 if I create it with .zip ending and move it to the saves folder

Thanks

I have generated quite some saves now, but I'll create some more and check.

I have the same issue on 0.15.1 on a clean server. 0.000 2017-04-25 21:27:31; Factorio 0.15.1 (build 29050, linux64, headless) 0.039 Operating system: Linux (Debian 8.7) 0.039 Program arguments: "bin/x64/factorio" "--start-server" "main" 0.039 Read data path: /root/fact...