Thanks for the in-depth response, it makes a lot of sense! Since it only happened on Mac I kinda expected that.
If it turns out to be too hard to find a work-around, then don't worry about it, I already super appreciate the work you've put into these tools.
Viewing post in Border toggler Mac
After further investigation, I have absolutely no idea how to produce a workaround to this problem. Please share your input on this bug report I submitted on GitHub and hopefully YoYoGames will take it more seriously: https://github.com/YoYoGames/GameMaker-Bugs/issues/6799