Error: connection closed when triggering play mode tests

[YintheCloud]

In Unity Editor Project Settings -> Enter Play Mode Settings: already set to "Do not reload domain or scene"

It was able to start the tests, and then connection is lost (with following error messages)
Is this a known issue?

From unity console:

[MCP Unity] WebSocket error: An error has occurred in sending data.
UnityEngine.Debug:LogError (object)
McpUnity.Utils.McpLogger:LogError (string) (at ./Library/PackageCache/com.gamelovers.mcp-unity@ac4a46a19f9a/Editor/Utils/Logger.cs:40)
McpUnity.Unity.McpUnitySocketHandler:OnError (WebSocketSharp.ErrorEventArgs) (at ./Library/PackageCache/com.gamelovers.mcp-unity@ac4a46a19f9a/Editor/UnityBridge/McpUnitySocketHandler.cs:149)
WebSocketSharp.Server.WebSocketBehavior:onError (object,WebSocketSharp.ErrorEventArgs)
WebSocketSharp.Ext:Emit<WebSocketSharp.ErrorEventArgs> (System.EventHandler`1<WebSocketSharp.ErrorEventArgs>,object,WebSocketSharp.ErrorEventArgs)
WebSocketSharp.WebSocket:error (string,System.Exception)
WebSocketSharp.WebSocket:Send (string)
WebSocketSharp.Server.WebSocketBehavior:Send (string)
McpUnity.Unity.McpUnitySocketHandler/d__3:MoveNext () (at ./Library/PackageCache/com.gamelovers.mcp-unity@ac4a46a19f9a/Editor/UnityBridge/McpUnitySocketHandler.cs:102)
System.Threading._ThreadPoolWaitCallback:PerformWaitCallback ()

From Claude Code

⏺ Update Todos
⎿ ☐ Run play mode tests for blocks

⏺ Now let me run the play mode tests for blocks using the Unity MCP tool:

⏺ mcp-unity - run_tests (MCP)(testMode: "PlayMode", testFilter: "Block", returnOnlyFailures: false, returnWithLogs: true)
⎿ Error: Connection closed

⏺ Let me try running the tests without the filter first to see if the connection works:

⏺ mcp-unity - run_tests (MCP)(testMode: "PlayMode", returnOnlyFailures: true)
⎿ No (tell Claude what to do differently)

OS

Sequoia Version 15.5

Unity

6000.1.10f1

MCP Unity Server

1.1.2

[CoderGamester]

@YintheCloud apologies for the late reply

I was now able to look into this bug and I cannot replicate it.
Can you tell me if still happens and the replication steps?

You correctly setup the domain reload mode:

In Unity Editor Project Settings -> Enter Play Mode Settings: already set to "Do not reload domain or scene"