Debugging woes with symbols: bug or feature?

I’ve struggled with this myself for a while during the betas of “AX7”. Sometimes, symbols aren’t loaded for your code and your breakpoints aren’t hit. It’s clear that the Dynamics 365 option “Only load symbols for your solution” has something to do with it, but still there’s strange behavior. It took me a few years at Microsoft for someone to explain the exact logic there. Since I’ve been sitting on this knowledge for a while and I’ve recently ran into some customer calls where debugging trouble was brought up, I realized it’s overdue for me to share this knowledge.