Bug: Filter by provider isn't working in my books

[bibliothecary]

Description of your request or bug report:

@NihongoLearner19

The “filter by provider” function isn’t working for me. I’ve added the Google Play and Ridibooks links to a few books myself, so I know they’re listed on the book pages. However, when I try to filter by provider (either Ridibooks or Google Play) in my library, it doesn’t work. The list of books stays the same.

Trello link:

[senkuma]

Experiencing this on the Japanese side as well. Tried on both firefox and chrome, and attempted to filter using a bunch of different providers to no avail. It doesn’t work for any user lists, including my own.

[暁のルナ]

This was working fine for me in My Books (I think), until yesterday. At the very least, it worked on the normal book search page