I can't get GBoard & Stickers on Samsung S8+ to work?

[Android Central Question]

I've been attempting to use GBoard to send stickers on my S8+. I can see a few, but if I try to send, I just get an error that it is unable to attach file. I also tried Sticker Market for GBoard. So I tried uninstalling GBoard, Emogi for GBoard, and the Sticker Market, and reinstalling. Now I can't see any of the stickers from Sticker Market or Emogi. I can see the basic ones that come with GBoard, but I still can't actually send them. I can't send the gifs already.

I CAN attach my own pictures and send them without a problem though.