When you author your overrides in the SCOM console and then go run the handy Override report, all the Affected Elements have an obfuscated name similar to uigenerated
- Export the management pack that contains the overrides
- Edit the xml and find the <LanguagePack ... > element
- Modify the IsDefault attribute to be true instead of false.
- Modify the version of the management pack at ManagemetPack|Manifest|Identity|Version
- Save and Import the management pack