Ground Traffic

Hello all

I have had a good read through the FAQs, read the "read me first" and carried out a forum search without much success - so here goes

I noticed whilst in Turkey that surface traffic (non planes) were visible at one airport (Istanbul) from an Ipad, however I look on PC and nothing
Ground traffic is set to "show"

I have spent hours looking today at various Airports and alas nothing, if I hadn't seen it I wouldn't be bothered, I have upgraded to premium and still nothing ?

Any ideas please

Thanks in advance

Dave in Doncaster, UK