The Japanese language in the editor doesn't change the name of custom blocks

I found a weird bug in the snap editor. When I add translations in the custom blocks and set the system language to Japanese, the names of the custom blocks are not in Japanese. I am confused.

I also set up the language of the block so it can support Japanese
Screenshot 2026-04-21 211944

“ja” is the two-letter language code for Japanese

I like the Japanese language

there are 2 Japanese translations for the 2 commonly used Japanese character sets, “ja” and “ja_HIRA”. Both codes work fine when translating custom blocks.

There are two of them!? I’m confused

I think it has something do with multiple writing systems of Japanese