Steps to reproduce:
Copy the N'Ko script name written in N'Ko script: ߒߞߏ
Paste it in a text frame of a new document
Result: Crash
If for some reason copying the text from here doesn't cause crash, copy it from the following WIkipedia page: https://en.wikipedia.org/wiki/N'Ko_script
Reproducible with Publisher 2.1.1 on Windows 10 Pro 22H2 (compilation 19045.3324)