Hi Keith,
I’m hesitant to even point this out because I know programming the formatting for screenplay mode must have been a pain.
Anyway, while in screenplay mode, if I type in a word or sentence while in Action format and then select, say, Transition, the sentence is automatically all caps and right justified.
But if I change my mind and decide to format it for Action, Scrivener will move the sentence to the far left, but it will remain all caps.
I played around with this and it seems that once you choose a sentence or a word where the format calls for all caps (Scene Heading, Transition, Shot) and then you change it to a format that doesn’t have caps (Action, Dialogue, Parenthetical), it will still retain the caps format.