I found a possible solution to re-trigger the cut scene from this poster to take you back to Roxy's area, with a little bit of jumping. You don't actually skip any cut scenes or content, and you'll be placed in the right spot: https://www.reddit.com/r/fivenightsatfreddys/comments/rkzf1z/found_a_way_to_skip_fazcade_and_roxy_raceway/
There have been a good number of people with the same problem as you and this method fixed their game.
I found a possible solution to re-trigger the cut scene from this poster to take you back to Roxy's area, with a little bit of jumping. You don't actually skip any cut scenes or content, and you'll be placed in the right spot: https://www.reddit.com/r/fivenightsatfreddys/comments/rkzf1z/found_a_way_to_skip_fazcade_and_roxy_raceway/ There have been a good number of people with the same problem as you and this method fixed their game.
It worked! Thank you so much! I was so ready to just give up if it weren't for you!
You're welcome, glad it worked out! =)