Should you need any other details, feel free to let me know.
Appreciate your quick response again.
Very unfortunately, this issue remains, and I have to manually refresh and upload desktop files to PBI service.
Microsoft Analysis Server 10.50.600.34
Microsoft Analysis Services Client Tools 14.0.608.142
Are you suggesting this could be a version compatible issue?
@starmoonknightIt was something our IT dept suggested to me, I am not convinced myself given that is still works in power bi desktop, particularly if your software is newish (ours is quite old I believe)
There is some version info here: https://powerbi.microsoft.com/en-us/documentation/powerbi-gateway-onprem/
Thanks @nickgraves for the link.
Have you tried to uninstall Analysis Services and run the gateway? When did your problem start occuring?