I've created a very simple app for WatchOS, It has only 2 screenshots, the main screen that a QRCode is displayed on and a second screen where a numeric block is displayed to enter a 4Digit password.
It works fine on my true Series 1 42mm watch, and on the 40mm Series 4 Simulator, the app has already been reviewed by Apple for publishing, but I've decided to test it under the 44mm simulator for whatever reason, and it shows It doesn't work.
When I try to display the numeric keypad, the app freezes and starts allocating large amounts of RAM and hogging 99% of the CPU.
My code is very simple and I really have been pulling my hair out to find out if there is a real problem or a fault with the simulator.
Here when the keyboard tries to show, the app freezes up
This is the normal expected behavior  Here we can see the large pieces of memory being assigned.