Uulaa's process of inflicting this ailment is accurate.

I'm able to fix it by
- choosing the alt which my main inexplicably wants to follow
- disabling Strobe (SHIFT-CTRL-ALT-F11 as set by ISBoxer)
- switching to Main (Tank)
- Re-enabling Strobe (SHIFT-CTRL-ALT-F12 as set by ISBoxer)
- reloading the UI (/reloadui as set by some mod)

At this point I don't have an issue until I try to set strobe/master to another toon via SHIFT-CTRL-ALT-F12.

I'm not sure if this is a Jamba issue or ISBoxer's macro not properly setting the strobe master on Alts and clearing the strobe master on Main.