I mean,What game are you talking about? Does the game support loading third-party *.rpa archives at all? Have you tried to load the original URM with that game?
I unpacked the original URM(use UnRen-forall_v9.4.bat) to facilitate the translation of some GUI interfaces for URM.
I placed the translated URM (in the form of a folder) into the game folder of the Renpy game, and it works.
However, when I followed the tutorial of the rpatool tool to package the translated URM (folder) into an independent .rpa file,
After repackaging the standalone .rpa file and placing it in the game folder, it doesn't work and an error occurs.
I would like to know if there was an error in my packaging process or if there are other reasons.
I just want to repackage the translated URM into a separate .rpa file.
Regarding the question you raised,
1. I have tried many games,
2.game fully supports loading third-party *.rpa archives
3. I tried to load the original URM, and it worked