[BUG] Burp freezes when we open existing project.

[nbsriharsha]

Describe the bug
When I open an existing project, the burp customizer popups a message box with no text and freezes the burp UI.

To Reproduce
Steps to reproduce the behavior:

1. Open an existing project which has burp customizer enabled.
2. You can see a message box with no text and the UI won't respond.

Screenshots

Versions (please complete the following information):

• OS: Windows 10
• Burp Suite Pro
• Burp Suite Version: 2021.3

[CoreyD97]

Thanks for the report.

I haven't been able to reproduce this behavior. Can you confirm if this is happening every time?