Thanks for sending this in. I found that if you make the clipping plane in the Front view and then switch the viewport clipped to be perspective instead of front in object properties, that the fill works which may help you in the meantime. I filed this as RH-20541, this report is not publicly visible at this time.
Here is an example of a solid not showing fills Dropbox link (howabout larger uploads to the forums dudes?)
Thanks Aaron, filed as RH-20905.
@stevebaer do you know if we can make the upload limit on discosource higher? 10mb might be fine.
I just cranked up the setting. Hopefully I have it set high enough now for most people.