While developing a messenger app like LINE, set up TableView as a message input field.
When I built it, the keyboard is not displayed.
As shown in the picture below, uncheck Connect Hardware Keyboard from Kayboard in the I/O menu of Simulator, or use Toggle Software Keyboard.
It should be displayed, but if you don't know the cause, is there anything else you can think of?
(PC, Xcode restart, etc. have been tried.)
If possible, please teach me other than the method of displaying with a code.

Catalina 10.15.3
Xcode 11.4