GE 4.2.1 + GV 2.3.1: The cached service fails to appear at a scale of 1:1,000,000 in the Geocortex,

GE 4.2.1 + GV 2.3.1: The cached service fails to appear at a scale of 1:1,000,000 in the Geocortex,

Despite the fact that the cache service below appears properly at the scale of 1:1,000,000, this service fails to appear at this scale in the Geocortex (attached).

http://213.6.3.171:6080/arcgis/rest/services/WestBank_2014_25cm_TMGrid_jpg_02/MapServer

/customer/servlet/servlet.FileDownload?file=00P6000000eltnUEAQ

/customer/servlet/servlet.FileDownload?file=00P6000000elzb3EAA

/customer/servlet/servlet.FileDownload?file=00P6000000elzLAEAY

What might be the issue here?

Thank you

Best

Jamal

GE = Geocortex Essential

GV= Geocortex Viewer for Silverlight template