Crash when save scene (MRP uploaded)

[jinyangcruise]

Tested versions

• Reproducible in v4.5.beta.custom_build [53ddcb4]
• Reproducible in v4.4.stable

System information

Godot v4.5.beta (53ddcb4) - Windows 11 (build 26100) - Multi-window, 1 monitor - Vulkan (Forward+) - dedicated NVIDIA GeForce RTX 3060 Ti (NVIDIA; 32.0.15.7680) - 13th Gen Intel(R) Core(TM) i5-13600KF (20 threads) - 47.84 GiB memory

Issue description

Editor crashed when I CTRL+S. Before this, I edited a script belonging to a plugin. This plugin generates some files for the project after which it called EditorInterface.get_resource_filesystem().scan(). I don't know whether it is related the crash.

crash.mp4

Steps to reproduce

1. Open MRP, then click MyPluginXXXXXXX which is a plugin obviously.
2. Then click the only button which opens a dialog.
3. Confirm it and click the only button again and confirm the dialog again.
4. If not crash, click the button again!

Minimal reproduction project (MRP)

test_crash_2025-06-27_16-54-54.zip

[AThousandShips]

Just to confirm this doesn't happen without your PR code?

[jinyangcruise]

I will confirm this later, not near my computer now.

[jinyangcruise]

Reproducible in master build, so not related to my PR.

v4.5.beta.custom_build [9a39760]

One crash:

Another crash:

3rd crash:

[jinyangcruise]

A node in ProgressDialog may be broken. Does anyone have some idea? How to debug this?

When initialized:

When crash: