Enhanced Basemap Thumbnails issue

[TimHayes1]

I am using the Enhanced Basemap Widget with Web AppBuilder Developer Edition 2.0 in Firefox (also testing in IE 10)

It works good, except that the basemap thumbnail is not visible when I launch the app.

I have created jpegs (18kb and 13kb), 400x400 as that was what I prompted to make. The jpegs are saved under:

client\stemapp\widgets\eBasemapGallery\images

and also

server\apps\6\widgets\eBasemapGallery\images

I have attached a screenshot of what I am seeing after launch.

[MollyJordan]

Any update on this? I am using WAB Dev 2.25 and it is still an issue for me. I add all my basemaps and custom thumbnails, then randomly they disappear.

Molly