Hey! Thank you very much zorkie, and sorry for replying so late.
It's such a long time I don't check this project, which is a pity because it definitely needs to be updated to the latest versions of Unity. My first guess, completely based on gut feeling, is that it has something to do with the way you write the fallback choice, like how many blank spaces you put between the star symbol and the arrow.
If you give me an example project I can investigate! BTW, let me know what you're working on, if it's not a secret, I would be so glad to know more about your work.
Have a nice day and keep in touch.