With IS Boxer, you create a team (character set) with the wizard.
And then you tell Inner Space to launch one of the predefined character sets.

If for example, you have three teams.
Team A: 5x Druids
Team B: 5x Paladins
Team C: 5x Shaman

If you have it configured that Team - Druid (a character set) launches the Druids, but you change it so it refers to the shammies, then the mapped keys don't always work properly. In particular the IS Boxer invite key won't work properly. But running the wizard again, and creating a new set for the second team, and then launching the correct set works fine. You don't even need to log out further then character select, to switch sets.

I'm assuming you have more then one slot, pointing to the same account. In the Character tab, you can see exactly which account a given character is set to use.

If you want a bit more help, pasting your profile will help.
Go to file, and copy profile to clip board.
Be sure to check the box which hides your account names; the character names won't matter for your security.
Then go to www.pastebin.com and paste the profile there.
Choose to save it for a month.
Then take the link and paste it here, or on the forums as www.isboxer.com