<!-- No tags beyond this point -->
"Sitefinity 4.2.1650.0 SE"
This is because of the names of the CSS files that you have put inside the "Global" folder. Sitefinity has strict mappings for names, so you should follow exactly this folder structure, when creating themes:
Inside the Global folder, you must have only "main.css" and "reset.css" files. Only they will be loaded automatically by Sitefinity. All .css files with different names should be placed inside the "CSS" folder.
What kind of hosting do you use? Is there a chance that the .css files could have been lost during the upload of your project?
Also, please try putting the your theme (or just the problematic files) in another folder outside App_Data and see if you can load them (try together with the theme and with a CSS widget to see if the problem comes from the theme or the files themselves). There are some problems with the App_Data folder, as it is a special ASP folder which requires some permissions and this may be the cause for the .css files not loading). Don't forget to keep the name main.css
Yes, I'm getting the same problem now. I'd rather try to fix this so I keep doing the way Sitefinity lays it out. Is there a resolution for this?
The problem I'm getting is i'm getting 404's for two css files.
The folder ONLY has these 2 css files and one cssLoadOrder.xml with a sub-directory Global. Whieh... is empty.