Kindle App crashing on new iPad

Got a new 2025 iPad with iPadOS 26.1 and was able to restore from a backup of my old iPad (Air 2013), noticing that the Kindle app crashes when opening any book (all Mobi and PDF files). Thought maybe my backup was corrupted so I uninstalled the app, reinstalled and put a completely new PDF file on it using iTunes, only for that to crash as well upon opening.

Wasn't sure if this is a known issue with the Kindle app on iPadOS 26 or if the Kindle app no longer supports local ebook files?