Anything that you consider incorrect behaviour of Praat (a “bug”) can be reported to the authors by email (paul.boersma@uva.nl). This includes any crashes.

Questions about how to use Praat for your specific cases can be posed to the Praat User List (https://groups.io/g/Praat-Users-List). This includes any questions on why your self-written Praat script does something unexpected.