複数形にすると、上書きした翻訳が置き換わらずに残り続ける現象

Nope, but this is not something I can repro without those kind of changes but I think this issue is probably related with: Issue with pluralized (count) translation override I think maybe that was the issue I couldn’t able to edit the plurals correctly. Now it works! :slightly_smiling_face:

「いいね!」 3