ah I was really hoping someone else had a similar issue and have reported it so they could share what they know. To answer your questions ill give an easier recent example:
Civil war: Shadow tries to cap thinks im zapped for good, he has no shroud (used it before to stealth out and zap me twice), i break my cc then start with lightning, lightning strike etc..i see damage [reply to Ld-Siris] but capping bar remains unaffected.
And guys to make this more specific, im on TRE imperial side. Capt_Beers I really do think it's not a cheat or anything, cause that would ruin all pvp if it started getting popular, but server lag, bug.. or something