When I click "Edit" on a deck in deck builder and add a card using the "+" button, the icons at the bottom disappear, forcing me to click "Done" and re-click "Edit" and start the process over. It's not too inconvenient but it doesn't allow me to add cards as fast as I could previously. I can email screenshots if that would help.
I'm experiencing this as well.
I also, am getting this
Fourth!