So, once I approach Caesars tent, I attempt to enter and the guard turns to me and says that I must enter alone. I have my main companion, Veronica, set not to follow. But as I entered Cottonwood it would seem that my other companion, Rex, disappeared. However, upon my first interaction, Antony specifically comments on Rex, despite him being no where in sight. I tried waiting 7 days in hopes of Rex going back to where-ever, didn't work.

I accidentally saved upon entering Cottonwood and the ferryman NPC will not allow me to leave until I speak with Caesar, except I can't enter his tent unless I kill everyone, which usually causes me to get slaughtered (Maria is not so good against all these guys in such limited space!). So, yeah, this is stupid. Can anyone save me before I rage quit?

Edit: Nevermind, didn't realize you could travel to map locations by just clicking a button, as soon as I traveled to a different place, Rex just ran up to me so I sent him to the Lucky 38 and then it let me in to see him instantly.

having this same problem on pc. Tells me i have to enter alone.. I sent my companion away and still wont let me into the tent.. and i cant leave without speaking to caesar.. stupid bug!