UPDATE: I just met up with a friend, but he was completely invisible to me. Likely because to me, he was still standing where he was when I logged in. I say this because after having to log off and log back in multiple times to exchange gear, he would be positioned wherever he was when I would log back on (I hope that makes sense).

It's like the environment around me is entirely frozen, including items in my inventory and hotbar.

A full reinstall did NOT solve the problem.

I can vouch for this issue. I was unable to play at all last night because I could not use my hotkeys, and my inventory would only say "Receiving..." when I right-clicked an item.

What should be noted is that I tried to drop an item on the floor, and while it did not visually seem to drop, it had in fact dropped when I logged out and logged back in. (At least, that's when I saw it had dropped. It probably dropped right when I tried to drop it).

(Also, the server capacity was a non-factor, as I played on full and empty servers)

I dropped the extra backpacks and it hasn't resolved the issue. Logging on to a full server seemed to fix the problem, but that may have been random, as logging into a 38/40 server earlier did not fix the issue.

I currently have a single hunters backpack and a carrying case. Clearly nothing too excessive. I've had that same getup for days.

^^^ Which I DO have. I am carrying 3 backpacks for a friend.

I agree with the OP. I don't get hungry every 10 minutes, so why does my guy? I LOVE the realism of this game. In CoD, you can get shot 10 times and be fine in 10 seconds. Here, one bullet to the gut, and you're a dead man.

Please make food and water as realistic. (And running should affect water, IMO)