Okay, I made a little progress but there’s still a few issues (however, much less than before!)
I used the simple Move To node in a blueprint with a trigger box to place right before the cutscene. This makes the player walk into a certain position before the cutscene!
My thoughts were that if this position was 0 in the Y axis, it would match the premade cutscenes.
In game it works a little different, since the ‘Location’ Vector is relative location not world location, I can’t exactly match it up- however- I did record the location of the player before and after the little jump to be as minimal as possible.
Because of the multiple lane of movements, the player doesn’t actually walk to y = 0 from the initial position for some reason?
(Here’s a little video to try and explain it better 
)
But basically, depending on where the player starts- they end up in a slightly different end location and jump a little (for some reason??)
I have no idea why this is happening, but it is a lot of progress from yesterday so I’m leaving this here in case anyone else is having this same issue!