Siphoning Strike bug *cannot inflict shock*

Sharing for some reason the expanded tool tip for my DPS for siphoning strike shows "cannot inflict shock".

This is not outlined anywhere in the details of this skill. Is it supposed to not be able to inflict shock? I figured if I can apply lightning damage and shock with the skill itself, it would help grant me a power charge.

Skill text:

"Dash to a target and strike them with your quarterstaff. If the target is shocked, consumes the shock to release a lightning shockwave around the target and grant you a power charge."

Check your support gem. i using it and it can inflict shock