Varus' Critical Strike Animation stops working upon leveling up W (+Video Examples)

##This also affects all skins, I wonder what's causing this bug...

If you could upvote this thread to make sure Riot see's this and potentially fixes this, I and other Varus mains would very much appreciate it.

###Below I provided examples of this bug occurring...

https://streamable.com/o6d2y https://streamable.com/53fqu https://streamable.com/us99k