when coding the beginning of a scene with a transition you have to place the transition command after the spotting commands and etc. the script goes line by line and if you have your spotting commands after the transition command, your characters will show up after the transition has already happened.
your script should something look like this:
INT. BACKGROUND NAME
&CHARACTER spot x.xxx xxx xx in zone x and CHARACTER spot x.xxx xxx xx in zone x
@transition fade in black in x
see how i coded the transition after the spot directing? try doing that in your script and see if it works. don’t forget to include the & sign instead of the @ sign infront of the spot directing or else it won’t work how it’s supposed to.
let me know if you have any further questions (: