Is /assist broken?

[Quintia]

I have been multiboxing for about 3 years now and have never had a problem with my assist.
I am using ISBoxer
Whenever I try to make my slaves assist it works for the first 5-10 trys then the slaves start targeting a random slave
I have never had this happen before and was wondering if there was a fix.

I have tried using keyclone, and a few other broadcasters and i keep getting the same results.

[zenga]

maybe an addon (jamba?) that overrides certain settings, try with disabling one addon after another to see if that is causing the problem, ... changed any macro's?

[Siaea]

I've noticed an odd thing too since I went to ISBoxer. When I'm picking up quests, I hit F3 (assist), then F4 (interact with target). Sometimes one of my slaves will go running to an NPC I never even targeted. Haven't figured that one out yet.

[Ualaa]

Are you using FTL Assist Me, as your assist.
Or does it run the in-game macro.. /assist Character?

I know that if I change targets quickly, the game takes a moment (roughly double my latency) to register that I have a new target.

I have a few variations on the Interact With Target key.
My melee toons automatically interact as part of my DPS spam, unless I toggle that off.
I also have an IWT key, which is manually pushed (not mashed), and sends IWT to everyone.

When I do that, toons will sometimes run towards the previous npc I have targeted.
If I push it a few times in rapid succession, you get the chicken running around (swarming) the target.
If I push it a couple of times (or several), but not in rapid succession, the toons eventually figure out where they should be heading.
It is not frequent enough to be considered an issue by me.

I get the same behavior with IWT when one-boxing, so its probably a warcraft issue rather than an IS Boxer issue.