External Keyboard Causes 'Select Select All Paste' pop-up

When I have the Apple Bluetooth keyboard connected, more than half of the times, when I pick a file in the file browser, the file appears, but the 'Select Select All Paste' popup appears, and I have to dismiss it to begin typing.

I don't know if this is a texttastic issue or a iOS issue. But I've not had the popup appear on any other app yet.