Projectiles are going through champions constantly

Something I've noticed in the latest patch is that projectiles either do not affect or just pass through champions that are performing an ability...

1.) Blitz shot his grab at a Naut as Naut was in motion after having hooked a champ. The grab went right through Naut 2.) Syndra used E (no balls out) while right up against Elise (in spider form, i think). The E went right through Elise without pushing her back 3.) Ashe used R on Trist mid jump. Trist was never stunned. Normally the stun duration would last beyond the completion of the jump. Without interrupting the jump of course.