Win10. I can try Linux, another Win10, one Win7 and one OSX El Capitan.
On OSX El Capitan I was able to upload my code on quirkbot. I will try later on the other PCs
@Marco_Vigelini, great that you could make it work on OSX, I will make some tests on Windows 10 here to see if I can reproduce the issue. I will keep you posted!