I'm not able to help you because it lacks details. But I'll share with you some tips that might help:

1. Check the RN architecture used to build the app in the file android/gradle.properties searches reactNativeArchitectures

2. Run the command ./gradlew assembleDebug

3. Once you've run the command, look for the android/app/build/intermediates/merged_native_libs folder and check that all the folders it contains contain your libhermes.so. If they don't, this means that hermes is incorrectly configured

4. In this case, create a fresh 0.73.0 application

5. Check if it works well on your emulator or Android device (Activate / deactivate hermes)

6. If it works well, check the configuration in build.gradle and app/build.gradle

7. It's likely that there's a difference between your project and the new one