Swiftkey no longer detects when I copy text to the clipboard
A couple of days ago (so around Jan 3 2019) the Swiftkey clipboard stopped working. Text I copy does not appear as a clipboard entry in Swiftkey, but I can use the Android gesture to paste it normally. It's like Swiftkey doesn't detect when I copy something.
I didn't install or change anything in the last week. I already tried rebooting.
What should I do?