GIS services loaded but not displayed

[SalvatoreCostabile]

Hi, I tried to add feature services from my GIS server and I managed to see all of them. Once they are loaded oj ARCGIS.com I can only see the names of the services but they are not displayed. Any suggestions?
You can find an example attached.
Thank you

[MikeMinami]

Can you provide us with the URL to your GIS server? Then we can try it out.

Thanks,

Mike