Source list URL path not relative to the MSI that was run
Currently if you run an MSI using a wrapper, and the MSI is located in a subfolder, the source list reg keys get set differently.
The path in HKEY_CLASSES_ROOT\Installer\Products\<product code>\SourceList\Net gets set to the relative path of the MSI at run time.
The path in HKEY_CLASSES_ROOT\Installer\Products\<product code>\SourceList\URL gets set to the root content URL on the DP.
This causes issues if the local cache has been removed or purged. The user can no longer perform a repair as the source path is invalid.
Normally I'd say just uninstall and reinstall, but in the case of some CAD systems that can be a pure nightmare for the user or tech.