Now that I've completed the DLC, the game will no longer let me recruit Gannon (I currently have him at the Lucky 38). If I have none, or two followers, (ED-E and another one) the option to recruit simply isn't there. If I just have ED-E he says "You have quite the menagerie at your disposal" while if I only have one human companion he says "Two's a crowd, three's an army." Whenever I try to recruit it flashes a message that I have too many companions.

I've loaded a previous save from before I started the DLC mission and there's no problem as long as ED-E isn't in the party. It seems to be tied to the DLC and ED-E. I really don't want to backtrack all the way back to before I did the DLC to recruit Arcade again. I haven't gotten Rex yet so I'm going to try that, but in the meantime, please add this to your mile-long laundry list of bugs to fix, Bethseda.

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Arcade has a problem with ED-E before the DLC I believe. Try going to Arcade with ED-E, firing ED-E, hiring Arcade, and then hiring ED-E again.

Also, have you done Arcade's quest? Arcade sometimes has a bug where he can't be re-hired that has nothing to do with the DLC.

I've done everything with ED-E. Hire him, fire him, kill him, send him to the Lucky 38, re-hire him with different companions. Every combination nets one of three responses, and none allow me to recruit him. Even with no companions at all it tells me I can only hire one companion at a time. I haven't even started Arcade's quest; I want to do it so I can get the necessary speech triggers at the Legion camp before I slaughter it with Boone to move forward with his quest.

I am working on getting Rex in the meantime, see if that will fix this problem.

This happened to me as well. I was fuming at first, but then I tried recruiting Rex and then Arcade decided to join up with me again for some reason.

This is a Dead Money related bug because I haven't started Arcade's quest and ED-E is still in disrepair in Primm.

I lost ED-E earlier in the game due to him "magically" disapearing in vault 34... the plant vault.

Started the expac and the game said my compaions returned to where I found them. ED-E to Primm and Gannon to the followers camp. Thought that would fix ED-E but nope.

Now he's not even a marker on my map and he's not in Primm either. And Gannon just won't join even though my party is empty. Says that "You have quite the menagerie at your disposal."

Would appreciate for Bethesda to fix this so I can continue on with my game and get back some "special" weapons from Gannon.

Well, recruiting Rex seemed to work. Arcade is now once again serving as my pack mule. Such a good little pack mule.

Just out of curiosity, does Obsidian actually read these threads?

This is exactly the problem I am facing right now. Please Beth/Obs fix your crap.