I have been using Karabiner Elements for nearly a decade and have never noticed this. To me, it's indispensable (I remap Caps Lock to both CTRL and ESC dependi

I have been using Karabiner Elements for nearly a decade and have never noticed this. To me, it's indispensable (I remap Caps Lock to both CTRL and ESC depending on whether I hold or tap) and it's the very first thing I install when I get a new Mac. There were some hiccups around the time of 10.12, but the developer resolved all the ones that I saw.