@TJung Despite my post above, I ultimately couldn't get EggTimer 2 to work consistently.
Having tested all of the Alfred-managed timers, I now use SandwichTimer, the only one that works (at all) for me. Fortunately, it works well and have been pretty reliable so far.
@vitor thank you for creating this! I have tried every other Alfred timer workflow out there — Timer, Simple Timer, EggTimer 2 — and none of them have worked consistently. This is so helpful!
Huge thanks to @Luciano Santana for fixing the EggTimer!
For anyone visiting, catching the end of this thread, just follow the instructions to download and install the version of EggTimer here:
https://github.com/lucianosantana/EggTimer2