ArcGIS 101 Thumbnail's not updating on server

harleypowers_parks

is there a problem with the thumbnail generation on arcgis server 101?
Event the help documentation shows the black thumbnails.
minor issue, and might be just because this is the esri sample data.

attached is image from my installation:
[ATTACH=CONFIG]17057[/ATTACH]

managerServices.jpg

30-9-2020.jpg

harleypowers_parks

I did a search and just replaced with an appropriate thumbnail, before checking the actual flow... so my workaround is bit of a hack.

workaround:
copy <your new 200 x 133 px image> to c:\arcgisserver\config-store\services\<name of service>\esriinfo\thumbnail\thumbnail.png

you might need to, but check with esri, I notice late that the px size was larger, oops
- c:\arcgisserver\config-store\services\<name of service>\esriinfo\.JPEG

and here - c:\arcgisserver\directories\arcgissystem\arcgisinput\<name of service>\extracted\esriinfo\thumbnail\thumbnail.png

it displays nice now... and if you don't like the default thumbnail that is generated, you can fix it.