Nasus Slow Q Bug [GAMEPLAY]

After the latest update to League of Legends, I have been encountering a bug with Nasus' Siphoning Strike spell. The bug causes Nasus use the spell extremely slowly. By slow I mean that he will use the spell on the target, but it will take roughly two seconds for it to deal damage, the animation is also slowed to match this. Nasus is able to be moved during this time. It does however, make fighting with Nasus very uncomfortable, as accidentally activating this bug during fights with enemies/the enemy team can waste precious time or result in enemies escaping before the spell can connect if Nasus is attempting to finish them with the spell.

How to Recreate This Bug:

1. Target and begin attacking a target with Nasus' basic attack.
2. Activate Nasus' Siphoning Strike spell.
3. Immediately after the spell is activated and Nasus begins to use it on the target, switch to another target. (This will cause Nasus to withdraw from the original target and then proceed to slowly use the spell on the new target)

Note: If the new target is within Nasus' Siphoning Strike range, he will proceed to slowly use the spell on the new target. However, if the new target is not within Siphoning Strike's range, Nasus will walk up to the new target, get within range, hesitate for roughly 1 second, and then proceed to use the spell at normal speed.

I have described this based on testing the bug, and unfortunately do not have video or screenshots of the problem. This bug seems to always occur if the above conditions are met.