A P shape: the left column and the back edge, with a full yellow bar on the right side.
Algorithms
F U R U' R' F'
6 moves
YOURS
Built from
F + Sexy move + F'
Loose moves
F
Trigger
Sexy move · backwards
U R U' R'
Loose moves
F'
Part of
OLL 31
Relations
Mirror
OLL 43
Your algorithm backwards
F R U R' U' F'
solves OLL 45
That's why your scrambles are never the inverse of the algorithm: you'd be practising OLL 45 without knowing it. CubeDojo builds a random state with this case and checks it comes out.