Nalle Hukkataival sending Esperanza
Nalle Hukkataival trying Desperanza
These screen shots illustrate a possible cause of Nalle's success and failure on the same last moves.
In the successful completion of the last moves, Nalle uses a perched high foot to setup the move to the left hand crimp.
In the unsuccessful attempt of the last moves, Nalle turns in, with feet much lower, to make the move the left hand crimp.
That difference in body postion choice could be the difference between sending and not.