Missing Submit button on My Tasks pane


I’m starting out with the Android app on my Xperia Z4 tablet using a BT keyboard.
I can’t add new tasks using the top-most field on the My Tasks pane.
When I finish typing the task, there is no Submit button on screen and the app won’t recognize the Enter Key.

Just for reference, this IS supported on the Add new Task window when pressing the bottom-right floating + Button and selecting New Task.