Still Images wont load into assets section

Hello Im trying to use shotgun for a very simple three step process for creating 2d jpg artwork
The program seems to have a problem uploading lowresolution simple thumbnails into the asset section… its very hit and miss . Does it take time for files to upload to a server somewhere and then display an hour later or something?

let me know if there is a problem with the install… Im using a trial version on a windows 10 machine.

It loads a thumbnail into one asset and then hit a miss not the next asset… maybe I have the pipeline set up wrong but this should be ABC… what going wrong