App Inventor emulator blank screen on Win10

For some reason, I cannot get the emulator to work correctly. I had try a very simple project but still got a blank screen (Please see below screen capture image). Did I do something wrong? Appreciate for any help.


It appears the emulator's Companion failed to update automatically (as it is supposed to).
While the emulator is working you can update manually.

Help>Update the Companion ; . Follow the directions on the screen to perform the update and reconnect the emulator. You may need to do this kind of update whenever there is a new version of the App Inventor software. The emulator needs to be running when you do this.

I find the open beta emulator works better for me than the old emulator, and it has a newer Companion in it.