Kled E Bug

It seems whenever Kled E's an enemy champ and said champ dies before the time window of which Kled can recast his E, Kled will still be able to E the die enemy champ's body. I have no clue whether or not this is purposeful but it can throw me off whenever I think i can cast Kled's E but instead up going back to the enemy champ's body. And yes, the indicator (the circle that would be around the enemy champ that signifies that i can recast my E) does stay on the dead body.

If necessary i can attempt to record this bug in action