IRELIA TRIFORCE (or SHEEN) PROC NOT PROC ON Q AND W

I noticed that after I use an ability (R or E) on my next AA i get extra AD from sheen .

but it does not happen from Q or W... and YES i was sure that TRIFORCE was on CD before use it...

Or just the dmg is not displayed but maybe taken in consideration? Sheen should add AD on your normal AA, so the dmg souhld just be added to red dmg (Ad)...

it does not happen with q or w, just e or r..