My friends and I rent a server and we have Arma 3 on it. I create a practice mission and tried it out on my computer. Then I use pbo manager to pack it and then uploaded it to the arma 3 server. I tried to get in it but get bumped back to the list of mission choices we have on the server. I can't play it. I've been trying to find info as to why.
I have 10 player slots with custom load outs marked as playable. I have the AI disable as I figured players could join and just pick of the the 10 player slots.
Do I have to do something different in order to play this on a dedicated server?

Does the mission require mods? Have you checked the .rpt file on the server to see what type of error its throwing?

The mission does not require any mods. I made sure it's a vanilla mission.

I don't know how to check the .rpt file on the server. It's a rented server so I'm not sure I could do that.

I just looked up about the .rpt file to see what it is and then sent a request to the place we rent the server from. I asked if they could locate and send the info to me.