According to your testing, does the issue occur with ONLY Immersive Portals mod?

No

Forge Version

40.1.68

ImmersivePortals Version

immersive-portals-1.4.9-rc3-mc1.18.2-forge.jar

Latest Log

https://gist.github.com/liviniumnetwork/57938a5829d501e51b7c3d8bff9834f5

Crash Report (if applicable)

Client Does not crash

Steps to Reproduce

1: Have All The Mods 7 installed & put immersive-portals-1.4.9-rc3-mc1.18.2-forge.jar into mod folder.
2: Launch the game, try to join a compatible server.
3: Be kicked multiple times before you can get into the server with the error message.

What You Expected

Should of loaded into the server as normal without issue, now with cool portals again on 1.18.2 :D

What Happened Instead

Get kicked out of the server with the error "Internal exception: Java.Lang.nullPointerException: Cannot invoke “net.minecraft.network.protocol.Packet.m5797(net.minecraft.network.PacketListener)” because “packet” is null"

Additional Details

Removing the immersive portals mod lets me connect to my server (Its a private server that I run so I can change as need be).
Optifine is not installed, I use multiple mods to achieve what optifine does.
Disabling my shaders and trying again results in the same error regardless, hence why reporting here.

I have tried to search the error but I find nothing on it hence why reporting here, sorry if this is not where it belongs but as stated before removing the immersive portals mod clears the issue & can play as normal.

Please Read and Confirm The Following

• I have confirmed this bug can be replicated without the use of Optifine.
• I have confirmed the details provided in this report are concise as possible and does not contained vague information (ie. Versions are properly recorded, answers to questions are clear).
• I have confirmed this does not happen on the fabric version (If it does please report to here instead).
• I have confirmed this issue is unique and has not been reported already.

Just to make sure, you did install Immersive Portals server- and clientside?

Twilight Forest is incompatible with Immersive Portals. They are doing something wrong with there dimension. I don't think this is causing this issue. Note though, that with Twilight Forest installed, more serious errors, like breaking worlds, may arise.

latest-client.log
latest-server.log

These are the latest, restarted the server and reinstalled the mod too on both ends just to see if anything changes, but it does not.

Ah alright, well I dont think anyone on the server even uses Twilight Forest so I can always remove it. Something else I should note here is that when using shaders (I am able to get into single player with immersive portals and everything else) the entire world turns red.
I have attached an image so you can see what I mean, they used to work when I used immersive portals on 1.16, so not sure if this is their issue or if it belongs here.
I have not tested other shaders.

Yes of course, it was both client & server side installed.

I accidentally closed the issue🥴 Was on phone, issue not solved^

Ok then. Please send me a client and a server log containing the same login attempt.

Please open a new issue for that.

Having the same issue and the same log errors.

Ah, I didn't notice connectivity. That's the issue here. Tracked in #21