Thanks for the feedback. Working on a fix. Thank you!

Edit: Saving of non-latin character Wikipedia pages fixed in v.1.2.1
Bonus 1: While logged in, visit the special page https://en.wikipedia.org/wiki/Special:ReadingLists to view your reading lists on the web. :)
For chinese, it would be https://zh.wikipedia.org/wiki/Special:ReadingLists

Bonus 2: The string you posted ("%E5%A4%A7%E5%BA%84%E4%B8%A5%E5%83%A7") is a URL encoding. Using a URL decoder like https://www.urldecoder.org, it brings it back to the original script 大庄严僧. :)