Copy and paste from one flatpak app to another, or from a flatpak app to a toolbox, appears to be broken in the latest f32 update. In some cases nothing happens, in others the flatpak app hangs and leads to a “Not Responding” message from Gnome.
Version: 32.20200607.0
EDIT: I rolled back to 32.20200605.0, and copy+paste works.
I’m starting to think the real problem here is Firefox and something in Wayland. I’m using Firefox in os-tree and I’ve been able to reproduce the problem using Slack both from Flatpak and as an overlay as well as other flatpak applications. Whenever it happens if I restart Firefox I can copy and paste out into my desired applications.