Since the latest update I have had problems several times when trying to copy text while editing cards. The copy/cut options do not always appear when I select text.
Others have had this also, but I don't know why yet. Hopefully I can find a reason.
This existed in the last version also, but seems to happen more in a multitasking environment. Removing the app from memory seems to fix it temporarily. (Double-click the home button to show apps in memory.)
Thanks to Rasimcan who figured out how to reproduce the error... exit the app while viewing the study screen in landscape... when you come back, copy-paste doesn't work.
If you leave in any other screen, all seems well. If you leave the study screen in portrait, all seems well. Just that combo and then returning seems to mess it up.
I don't have a fix yet (if there is one), but at least we're making progress.