Cherrytree crashes during PDF export

[ciku78]

Version, Operative system
Windows 10 21H2
Cherrytree 0.99.54

Describe the bug
The program crashed when I try to export a document in PDF. I have applied some custom setting and suspect it's caused by the settings because it does not happen with the standard setup and the same document.

To Reproduce
I can give my custom settings and the file. The issue happens every time I try to export, also on other systems/PCs with the same setting.

[giuspen]

Yes please help me reproduce the issue detailing the settings that cause it and possibly sharing with me a document that causes the crash specifying the export settings. If you want to send the document privately to me please look at help--about Dialog for my email

[giuspen]

After receiving the data privately I can confirm that I can reproduce the crash. I'll update here once I have a fix.

[giuspen]

This has been now fixed. The fix will be in 0.99.55. Thanks for reporting.