Can't see other players in the same zone

[N0ctrnl]

So I have a peculiar issue on my server. I can zone multiple characters to a zone, but they can't see each other. They interact with the same mobs (selling to vendors shows up for all) but not each other. Camping and coming back fixes this.

The thing that's perplexing is I don't see any errors at all. Anywhere. It just randomly does this with both static and dynamic zones.

I am using the RoF2 client. Is this perhaps an issue with that? Is there something I might be missing?

Thanks.