Second time since new patches i had this trouble. I connect to a server, join the race and other players can't see me, they can't even see my name and other stuff over car. When this happens i can run thru them and nothing happens to them, only i am getting damage. Connection is fine and ping is not more than 60-80 for eu servers. And this kind of problem happens only in LFS.

Check that your firewall is not blocking LFS. Also try a fresh install of LFS.

Yesterday everything was fine. Gonna try the new test patch tho.
Upd: new patch doesn't fix it.

do you have replays of this?

here you go

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Upd: just found that the car is staying in pits invisibly for server/other players while I'm driving it.

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Tried to host server and everything was fine. Still invisible on other servers.

Quote from Gr1jkeeRU :

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Tried to host server and everything was fine. Still invisible on other servers.

Because it is a problem with your connection. I had a similar problem when the tool for monitoring bandwidth (NetWorx) blocked one of my TCP or UDP (do not know exactly which one). Check your firewall if not blocking your ports TCP/UDP of LFS.

Turned off the networx and everything looks fine. Thanks!

I reinstalled it to a newer version and it (networx) works without a problem.

How did u do that