I'm using a MacBook Pro with MacOS High Sierra version 10.13.2.
I used Ukelele to create a custom keyboard layout. I installed it (using the Ukelele installer), and it works fine in some apps, but not others. I can use it in Chrome and in the Terminal (and I am using it to type this description).
But when I open certain apps, like Mail, Notes, Microsoft Excel, and others, it does not work. When I try to select the layout from the drop-down menu like I would in the other apps, it appears like it does in the others, but when I select it, it does not change.
The keyboard layout I created does not have special characters, it is an english layout (abc...xyz) with most characters in different positions than on QWERTY. It is just an obscure layout, so I had to create it myself.
Any suggestions? I am not as familiar with MacOS, as I am coming over from Linux.