Corner above the slot with white facing you; the edge is beside it on the right, already paired with it.
Algorithms
U R U' R'
4 moves · R and U only
YOURS
U2 R U2 R'
4 moves · R and U only
R' F R F'
4 moves
Relations
Mirror
F2L 2
Your algorithm backwards
R U R' U'
solves F2L 4
That's why your scrambles are never the inverse of the algorithm: you'd be practising F2L 4 without knowing it. CubeDojo builds a random state with this case and checks it comes out.