Comet with Withering Touch support causing inevitable lag on hit & even instance crash

The support gem Withering Touch has some wierd issues if socketed inside Comet.

When this 'withered' Comet hits multiple targets, notable lag of the game instance will occur. This can be replicated by hitting a Frost Wall, or the Burrowing Bramble Bash Hideout Decoration minigame in the hideout.

Moreover, if you trigger 'withered' Comet with high frequency so that the lag stacks quickly, the client or the game instance will crash in few seconds. This can be easily replicated in the hideout minigame using bloodmage with Cast on Critical.

Such instance crash caused my inventory & stash items to be reloaded to previous state, indicating potential risk of abusing for item duplication.

This is a dangerous bug so I did not post it anywhere else. Please check ASAP.