Yarn dialogue editor freezes entire window

Is there an existing issue for this?

• I have searched the existing issues

Describe the bug

When I try to create a Yarn JSON on actions/load DialogueTree from JSON/Create with Yarn, it opens the window and just freezes, including the yarn screen and the Gdevelop bar above. The only way I can close it is pressing the X mark.

Steps to reproduce

1. Open events tab
2. Add a action
3. Select Other Actions
4. Game mechanic/Dialogue Tree/ Load dialogue tree from a JSON file
5. Select Create with Yarn
6. The program creates a window
7. Window freezes

GDevelop platform

Desktop

GDevelop version

5.6.280 (editor full version: 5.6.280-55a2303f3c713ca7b475df5f59a6e800794be8f1, core version: 5.6.280-0)

Platform info

OS (e.g. Windows, Linux, macOS, Android, iOS)

Linux

OS Version (e.g. Windows 10, macOS 10.15)

Zorin OS 18.1 Core

Browser(For Web) (e.g. Chrome, Firefox, Safari)

Device(For Mobile) (e.g. iPhone 12, Samsung Galaxy S21)

Additional context

No response