crash help Frequent crashes playing & joining on my friend's world...

[Ladder Boy]

Problem: Been playing with my buddies, and I keep crashing on and off. Seven times in 3hrs from "Client Thread Crash" (sometimes on join, sometimes 20+min in) and twice with an actual crash report. Additionally, it sometimes gets stuck on "Connecting to Multiplayer Server" but doesn't connect unless he reboots the whole world, although my other friend has no issue.

Attempted Fix: I have tried reinstalling the 1.22.1 update (it happened a few times during the 1.22.0 as well), and I had him run the world in "repair mode" in case that was it.
Neither of us are running mods, we wanted to make it through vanilla winter before we got there, but first I need the game to run. Please help!

Here is the Crash Report:
Game Version: v1.22.1 (Stable)
5/2/2026 12:47:00 AM: Critical error occurred
Loaded Mods: game@1.22.1, creative@1.22.1, survival@1.22.1
System.NullReferenceException: Object reference not set to an instance of an object.
   at Vintagestory.Client.NoObf.ClientSystemStartup.HandleServerIdent(Packet_Server packet) in VintagestoryLib\Client\Systems\Startup.cs:line 193
   at Vintagestory.Client.NoObf.ClientMain.ExecuteMainThreadTasks(Single deltaTime) in VintagestoryLib\Client\ClientMain.cs:line 817
   at Vintagestory.Client.NoObf.ClientMain.MainGameLoop(Single deltaTime) in VintagestoryLib\Client\ClientMain.cs:line 783
   at Vintagestory.Client.GuiScreenRunningGame.RenderToPrimary(Single dt) in VintagestoryLib\Client\MainMenu\Screens\GuiScreenRunningGame.cs:line 173
   at Vintagestory.Client.ScreenManager.Render(Single dt) in VintagestoryLib\Client\ScreenManager.cs:line 742
   at Vintagestory.Client.ScreenManager.OnNewFrame(Single dt) in VintagestoryLib\Client\ScreenManager.cs:line 686
   at Vintagestory.Client.NoObf.ClientPlatformWindows.window_RenderFrame(FrameEventArgs e) in VintagestoryLib\Client\ClientPlatform\GameWindow.cs:line 112
   at OpenTK.Windowing.Desktop.GameWindow.Run()
   at Vintagestory.Client.ClientProgram.Start(ClientProgramArgs args, String[] rawArgs) in VintagestoryLib\Client\ClientProgram.cs:line 354
   at Vintagestory.Client.ClientProgram.<>c__DisplayClass10_0.<.ctor>b__1() in VintagestoryLib\Client\ClientProgram.cs:line 131
   at Vintagestory.ClientNative.CrashReporter.Start(ThreadStart start) in VintagestoryLib\Client\ClientPlatform\ClientNative\CrashReporter.cs:line 95
Game Version: v1.22.1 (Stable)
5/2/2026 12:55:48 AM: Critical error occurred
Loaded Mods: game@1.22.1, creative@1.22.1, survival@1.22.1
System.NullReferenceException: Object reference not set to an instance of an object.
   at Vintagestory.Client.NoObf.ClientSystemStartup.HandleServerIdent(Packet_Server packet) in VintagestoryLib\Client\Systems\Startup.cs:line 193
   at Vintagestory.Client.NoObf.ProcessPacketTask.ProcessPacket(Packet_Server packet) in VintagestoryLib\Client\Systems\ProcessPacketTask.cs:line 18
   at Vintagestory.Client.NoObf.ProcessPacketTask.Run() in VintagestoryLib\Client\Systems\ProcessPacketTask.cs:line 12
   at Vintagestory.Client.NoObf.ClientMain.ExecuteMainThreadTasks(Single deltaTime) in VintagestoryLib\Client\ClientMain.cs:line 817
   at Vintagestory.Client.NoObf.ClientMain.MainGameLoop(Single deltaTime) in VintagestoryLib\Client\ClientMain.cs:line 783
   at Vintagestory.Client.GuiScreenRunningGame.RenderToPrimary(Single dt) in VintagestoryLib\Client\MainMenu\Screens\GuiScreenRunningGame.cs:line 173
   at Vintagestory.Client.ScreenManager.Render(Single dt) in VintagestoryLib\Client\ScreenManager.cs:line 742
   at Vintagestory.Client.ScreenManager.OnNewFrame(Single dt) in VintagestoryLib\Client\ScreenManager.cs:line 686
   at Vintagestory.Client.NoObf.ClientPlatformWindows.window_RenderFrame(FrameEventArgs e) in VintagestoryLib\Client\ClientPlatform\GameWindow.cs:line 112
   at OpenTK.Windowing.Desktop.GameWindow.Run()
   at Vintagestory.Client.ClientProgram.Start(ClientProgramArgs args, String[] rawArgs) in VintagestoryLib\Client\ClientProgram.cs:line 354
   at Vintagestory.Client.ClientProgram.<>c__DisplayClass10_0.<.ctor>b__1() in VintagestoryLib\Client\ClientProgram.cs:line 131
   at Vintagestory.ClientNative.CrashReporter.Start(ThreadStart start) in VintagestoryLib\Client\ClientPlatform\ClientNative\CrashReporter.cs:line 95
 

[Foe Hammer]

I think the more appropriate thread is Vintarian Support, it will also be helpful to give your client log as it will show more detail on what is happening, though be sure to redact any sensitive info that may be included if it is like IP address and the like.

Are you the only one having issues with the server, or are other players unaffected?

Additionally, you may need to fresh install the game and or clean out the cache files in appdata.

Edited 21 hours ago by Foe Hammer

[Ladder Boy]

Ok, I'll post it over there while I fully delete it as you suggest. Yeah, it's so far only happening to me. I dunno how to post the log without giving sensitive info, I'm a plug-and-play type of guy.
Thank you.