Since your aa change with Kled

100% reproduction (if youre good enough)

If you cancel autoattack with kled (or with any champion but kled has a w passive)

at the last second (or last animation), the aa doesnt deal damage (which is fine because you cancelled the animation)

Anyway his w goes on active like if you did the first hit (you still have 4 hits from the ability to do damage, but it goes active and decays during the cd like you did the first hit) then goes on cd because the active cooldown or the 4 hits were consumed.

Kind of annoying when youre trying to farm in lane