The official Japanese Pokémon website has announced a voluntary recall for the Pokémon fit Coil Plushies that have the colors of the magnet on the right side reversed. It should blue at the top and red at the bottom. The plushie is part of the Pokémon fit set 2 which was initially released in November 2018 but the batch of Coil sold from July 15th, 2020 until January 15th, 2021 can have this issue.

Pokémon fit Coil Plushie Notice and Apology

We have discovered that the magnets on the Pokémon Fit Coil plushies sold at the Pokémon Center, Pokémon Store, Pokémon Center Online, and the Pokémon Store on Amazon.co.jp since July 2020 have been turned upside down.

As a result, we will be issuing replacements to customers who own the aforementioned products, as described. We sincerely apologize for any inconvenience this may have caused to our customers. In order to prevent such incidents from occurring in the future, we will make every effort to ensure quality control and prevent recurrence. We sincerely appreciate your understanding and cooperation in this matter.
February 6, 2021 Pokémon Co.

Product Name: Plushie Pokémon fit Coil
Manufactured by: TOMY Arts Co.
Distributed by: Pokémon Co.
Correct specifications: The magnet on the right side should blue at the top and red at the bottom.

Where and how to exchange:
Please bring your purchased Pokémon Center or Pokémon Store product to the staff at the sales counter.

Source: https://voice.pokemon.co.jp/stv/zenten/2021/02/post-10966.html