Colors balance shift is a key part of Film recipes so my Shortcut would fail to match as white balance would inexplicably reset via Q. Fujifilm found the bug too: “bug has been fixed, which caused that WB SHIFT saved as ‘CUSTOM’ would be disabled by operating the ’Q’ menu.”

@otaviocc at least I hope this fixes that issue. Certainly having the White Balance Shift disabled when I noticed the wrong white balance was REALLY frustrating. I'm guessing they're part of the same bug.