Somehow Stash 2.6.x fails when downloading the plugin css file. I could not track down the source of the problem so the dirty fix for now is to include the style in the templates.
Thanks for the help! I've been out of town for the past week and a half, so didn't have a chance to look into it. If you ever figure out what was causing the css issue, I'd be interested to find out as well.
Somehow Stash 2.6.x fails when downloading the plugin css file. I could not track down the source of the problem so the dirty fix for now is to include the style in the templates.