A T shape: the right column and the left edge, with headlights on the left side.
Algorithms
F R U R' U' F'
6 moves
YOURS
Built from
F + Sexy move + F'
Loose moves
F
Trigger
Sexy move
R U R' U'
Loose moves
F'
Part of
OLL 2
OLL 3
OLL 4
OLL 40
OLL 41
OLL 42
Relations
Your algorithm backwards
F U R U' R' F'
solves OLL 44
That's why your scrambles are never the inverse of the algorithm: you'd be practising OLL 44 without knowing it. CubeDojo builds a random state with this case and checks it comes out.