Thanks. I did not take into account recalculating the path at mid jump and it should at least complete the jump before using the new route.
The block's default position is on purpose precisely to allow seeing the AI complete the level. As it is bugged and sometimes cannot recalculate the path properly when moving the blocks, it would be impossible to complete it.
I didn't know about "will you snail", it looks awesome! Thanks for the recommendation, will definitely take a look at it.