Quote Originally Posted by Scienter View Post
Just an FYI to people who are still playing: Isabela's friendship perk causes a game breaking bug. If you gain her friendship perk, you'll lose 5% of your attack speed every time you save a game w/o her in your party. The save game is broken, and it will assume that she is in your party when she is not. You probably won't notice the decrease in attack speed until your attack animation slows down. I had this issue w/ my rogue, and fixed it by downloading the gffeditor (http://social.bioware.com/project/1936/#files), running daosavegame.exe, and changing my attack speed animation back to 0.0. It's value number 42 if you use the editor I posted. There hasn't been a patch yet, so this is the best way to get around it IMO. It works, but occasionally you need to go back in and re set it unless you keep Isabela in your party. If you get the bug, it eventually makes your character unusable because the attack speed is so low.

Apparently, this also happens with the DLC companion Sebastian, but I don't have him so I can't verify this.
^^^ What he said.
It does happen with Sebastian too.
You need to open the savegame and modify it each time they are removed automatically from your party....like say when you go to your homebase. On the other hand you can simply change the base value so that it can neutralize the effect once and for all.
When it first happened with my warrior I thought the slow animations looked kind of cool...till I got kicked in a big fight.
Even if you don't have the bug get the editor. It has tons of stuff you can play around with including inventory, talents and approval of companions.