# Reported issues for Funplay Godot MCP

Pod holds 7 of 7 problems reported by people outside the maintainer team. Issues filed by the project's own owners, members and collaborators are excluded entirely — a maintainer's release checklist is not a warning to a prospective user.

Back to [Funplay Godot MCP](/mcp/funplay-godot-mcp).

## Most discussed

### play_main_scene with multiple instances causes boot loop

Godot 4.6.3.stable.mono, Windows 11, funplay-godot-mcp 0.9.2

- play_main_scene via MCP → **Stack underflow! (Engine Bug) storm at modules/gdscript/gdscript.h:530**, plus **The calculated index 0 is out of bounds (the array has 0 elements)**
- Addon logs [success], but the MCP client receives an empty response
- Editor has multiple_instances_enabled=true, run_instance_count=2, custom per-instance args (-- creative, -- client)
- Result: endless relaunch loop; exit_play_mode returns success but do

[Read the thread](https://github.com/FunplayAI/funplay-godot-mcp/issues/7) · 2026-07-29 · closed · external user · 1 comment

### error信息不够详细

mcp调试过程中对于error信息ai并不知道具体行号，能加入具体行号信息吗。godot编辑器是可以看到具体行号的。

[Read the thread](https://github.com/FunplayAI/funplay-godot-mcp/issues/6) · 2026-07-10 · closed · external user · 3 comments

### 点击Funplay MCP Dock后，godot4.7.net版就卡死了

引擎版本：
godot4.7 .net
插件版本：
funplay MCP 0.9.3
描述：
你好，我是一位中国用户，我按照要求，导入插件，并点开Funplay MCP的dock后，我的编辑器直接未响应了，我曾经使用的是0.9.2，也有这个问题，我以为是兼容性问题，但是卸载后再升级0.9.3发现依旧存在卡死未响应的BUG

[Read the thread](https://github.com/FunplayAI/funplay-godot-mcp/issues/5) · 2026-06-22 · closed · external user · 2 comments

### 启用插件后编辑器布局变形调试窗口消失

使用前

<img width="1878" height="977" alt="Image" src="https://github.com/user-attachments/assets/fe9c227a-7c26-4591-8e1c-906ebaccf22e" />
使用后

<img width="1909" height="984" alt="Image" src="https://github.com/user-attachments/assets/f6f12cbd-4fb6-4f70-a5e4-ab840eb030aa" />
无法手动编辑地图和动画了

[Read the thread](https://github.com/FunplayAI/funplay-godot-mcp/issues/4) · 2026-06-22 · closed · external user · 3 comments

### Editor layout not fully loading

When I open Godot with the plugin already enabled, the bottom bar does not load. This is the one that has the log with warnings, errors, etc.

When I select Funplay MCP tab (next to groups/signals) then it loads. So every time I restart, I have to manually scroll over to the Funplay MCP tab, click it so it loads the rest of my editor, then scroll back to the inspector tab. It adds up to being quite time consuming and tedious, would be nice if you can fix it.

[Read the thread](https://github.com/FunplayAI/funplay-godot-mcp/issues/3) · 2026-06-14 · closed · external user · 2 comments

### Severe memory leak

With the plugin enabled, whether MCP server running or not, the editor FPS drops immensely to ~10fps and continues to accumulate frame latency as long as it remains open, even reaching <2ms.

If I go to Project Settings and disable the plugin it resolves immediately. Tried in 2 different projects with same outcome. It didn't happen immediately, I had to actually use it for a while, but after using for a while, restarting the editor did not restart the effect, the only solution was to disable the

[Read the thread](https://github.com/FunplayAI/funplay-godot-mcp/issues/2) · 2026-06-14 · closed · external user · 2 comments

### Security: 2 high-severity issues (private details offered) + a Godot 4.6 load-blocker (fix included)

Hi, and thanks for funplay-godot-mcp! I reviewed it before adopting it in a project. Sharing the results.

**First, the good:** no malware or data exfiltration, the update check only hits the GitHub releases API (no telemetry), the server correctly binds `127.0.0.1` only, and the release-script hygiene (symlink/`..` rejection, SHA256SUMS) is above average.

**Two security issues (high severity), details offered privately.** I found two I'd rate high:

1. A path-scoping issue in the file tools th

[Read the thread](https://github.com/FunplayAI/funplay-godot-mcp/issues/1) · 2026-06-07 · closed · external user · 6 comments

## Most recent

The remaining reports are on [the project's issue tracker](https://github.com/FunplayAI/funplay-godot-mcp/issues).