Unable to search by number of stars?

Looks like the new Pokémon Go update no longer allows to search by number of stars your Pokémon is. Can anyone else confirm?

A bug introduced in the most recent update to the Pokemon Go app broke that search feature. Niantic acknowledged the bug on Twitter earlier today.

This has been fixed in the next minor update (0.163.1 on Android) on the 18th of December 2019. You can now search for your 100% Pokémon again. Source (apart from own experience), emph mine:

3) Search Strings 1*, 2*, 3*, and 4* Are Not Working

Issue Description: Search strings 1*, 2*, 3*, and 4*, used to filter Pokémon by appraisal category, are not working.

Issue Status: Fix in recent update (0.163.1)

Last Updated: December 18th