[GAME PLAY] Lux's E Pre-detonates before you cast again...

Multiple times now in Norms and ARAMs I've noticed a bug on Lux's E where you cast it and it immediately detonates and doesn't wait for you to recast E for it to go off. Sometimes it will even detonate as soon as it is cast. This has happened now for like the last month any time I try to play Lux. Has anyone else noticed this yet??