King Arthur: Well, you have to know these things when you're a king, you know.
You are not crazy. I am having the same issue. I reached level 60 playing coop with my son. I was able to buy Salim, but his shows this blinking shopping cart and $. some bug i guess. sucks that we cant buy with gold somthing we finally earned. i guess i will have to go outside now and look at the sky.
I'm having this same problem!
Is there no fix? That's pretty stupid.
I just unlocked Victor "Goddamn" Sullivan too!
And now I'm saying that for an entirely different reason.
Have the same problem. Just started playing 3 weeks ago. Finished campaign (enjoyed it =D) and moved on to co-op to play with my brother. Updated to v1.18 before leveling up / increasing our rank.
I'm assuming that since the original post was 2012, it has now been a year that earned in-game money could not buy certain characters (heroes and villains) on Co-op mode. For me, starting from the top, I cannot buy Elena Fisher until the character just above NATHAN UDF. Same flashing shopping cart / $ symbol. I press "O" button and nothing happens - no note as well if they can only be bought with real money in the store.
Hopefully there's an update on this. (I would really want to play with Victor Sullivan outside the co-op adventure mode XD)