Yes its bugged and it gimps assault vanguard Ion Pulse. Without the first tick the ability deals no immediate damage and deals no damage until the 3 sec mark causing Ion Spam to lose half its plasma damage given that the gcd is only 1.5 sec. Its really a bigger deal then it appears since with the surge talent proc ticks can get up to 1k on crits which is quite a large immediate damage loss.
The Powertech equivalent works properly so its no tooltip problem.
Well I'm starting to suspect Trooper and Bounty Hunter aren't mirror classes.
So different results and play styles on both sides that they seem like different classes. Atleast in pvp.