So I've tried to put up a server, but couldn't get much further than gray ocean. It shows up on the server list, and I can join my own server and walk around, but everyone else apparently just gets a gray world.

I'm not sure if it matters but yeah, I tried not playing in my own server, people still get gray worlds. I can usually see lots of clients joining and leaving.

I have forwarded both TCP and UDP 32887. Not sure if TCP is necessary.

Now here it gets weird: I can't check if 32887 is forwarded via canyouseeme.org. It tells me the connection times out.

I have other ports, both above and below 32887, both TCP and UDP, that I have forwarded for other purposes. canyouseeme.org correctly shows the forwarded TCP ports as open, and gives a time out error for UDP ports.

Apparently you can't check UDP with sites like these anyway, you need to communicate with the actual server. Though then again, if my server appears on the list, I guess the port is open?

By the way, if I forward just 32887 TCP, canyouseeme.org still doesn't say it's open. What the hell? I dunno lol.

This appears to be a major problem, since half the servers are empty right now and probably for this reason. Another quarter have some players, but you get a gray world, probably for the same reason.

So what's with the gray world thing? Is it a configuration problem? Is it because the server bandwidth (master or individual) is saturated? Is it because of latency/lag?

Sorry about us bombarding the game with requests....