VSCode stm32cube framework intellisense failure

OH! This is a new one on me…
After I closed VSCode then re-opened my project, I found my added STM32F103xE define entry was no longer there.

I tested it several times and could visually SEE the entry get removed every time.

EDIT0:

Except I guess formulahendry forked it because that setting isn’t available.

EDIT1:

Welp, looks like it’s intended to work that way and “build_flags” is what’s needed for any additions. Who knew… (that guy)