Is my save file bugged? (Slight spoilers for eps. 1 and 4)

Last night, I decied to replay through episodes one through four and (stupidly) overwrote my old save to make sur I had the exact save file I wanted for the finale.
While playing through episode four, I encountered a bug in the Lucky Pawn where all three dialogue options where "This option is blank!", and after that point (right after Jersey and the Woodsman walk in), no character spoke a single word. I reloaded my save file and it went back to the beginning of the scene, with Toad trying to sell the coat, again with no spoken dialogue at all. So I reset the game and rewinded the scene, which seemed to fix the problem. I finished the episode and everything seemed fine.
But then, the player choice survey appeared, showing only two entries: whether or not I sent Toad to the Farm and what I did in the Crooked Man's room, which I found odd since I remembered other choices showing up before, so I checked the Player Choices thing in Extras, and instead of seeing all choices from the series, I can only see those two and another two from episode one (giving Faith the money and lying to Beast). All other choices from the entire series are missing from the list.
It might be nothing, but I'm kind of worried this will screw me over in the finale and make it unplayable. Has anyone encountered this in an earlier episode, and if so, has it affected the subsequent ones? I wouldn't exactly mind replaying it again, but it is a time commitment and I got things to do :P
I'm playing on PS3 if that helps.

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