Invisible Particles

I have been experiencing some issues with the skillshots. For example, when Morgana (with Victorious Morgana skin) throws out a Q, it is invisible. I did not experience it, when I played her, but when she was against me, it was invisible. Almost the same happened with Nidalee Q. Enemy Nida threw a spear, and only the yellowish effect showed, but the spear itself was unable to see. It could be avioded, but less visible, and caused some trouble. Sorry, I couldn't took a screenshot. At Morgana's case, I couldn't even take a picture of the nothing, so... I don't know, what causes the problem, neither that it is a bug every game, or only at specific cases.

Hope you can fix it soon!