Any ideas why?

Juan Marichal S9* set for (Do not relieve B4 F8) gets pulled after 8 innings of a 1-1 game while still at F9. HAL brought in Joe Sambito (not listed as a LH specialist) to start the ninth. My opponent promptly puts up a six spot to win the game. Now, I might have lost with Marichal on the mound anyway since the damage was on the hitter's cards but wondering why Marichal was pulled before F8 despite instructions not to.

https://365.strat-o-matic.com/game/472620/835

He was pinch hit for in the 8th inning. That overrides the F#.