Lightning Clap from Electrical Melee does not allow Scrapper AT Sets

[huang3721]

Lightning Clap from Electrical Melee does not allow Scrapper AT Sets and Universal Damage, despite said power deals PbAoE damage.

 

Pop up menu shows that this power allows Scrapper AT set, knockback and stuns,

 

But I can not slot Critical Strike into Lightning Clap

 

Same happens when I try to slot Universal Damage.

[ZorkNemesis]

A text error, but not actually a bug; Lightning Clap doesn't do damage (it's a KB/Stun like Hand Clap in Super Strength) so damage sets won't do anything for it.  The power should not accept ATOs on any AT.  Why it says it can take them is probably just an oversight