Android 13: Simpletask Cloudness: Can't select the folder

[NCTVG]

Good evening

Thank you for the app. After giving the app the permissions, I cannot select the folder for the todo.txt file.

Do I need to adjust anything else under Settings?

I want to synchronise the todo.txt file via Syncthing. I can already sync my Markdown files between Markor and Zettlr.
Thanks in advance for your support.

I'm using a Pixel 6 Pro with Android 13. Do you need any more information?

Thank you very much.