Drug/buff stacks dissapere when zoneing bug

First of all, sorry about the title - had no idea what to call it.

The problem I want to get rid of it is when you zone with more than X amount of "stacks" (buffs/drugs/shields), some of these will be removed, while still being showed.

I cant remember the exact amount of "stacks" needed for the bug to occur. However Im guessing that it is more than 8 "stacks".

For example, My tank NEEDS 3 drugs - and I take another one, because.. Why not? :p
If I get primes and shields, while on those 4 drugs, 2 of these will stop working on zoning.


Please, please, please fix this..
And if it is fixed on the Test-server, then Im sorry - I just dont have the time to use the testserver (barely have time to play retail atm).