tango This will work.
The reason the install is failing on the other profile is because of two possible reasons:
- You're trying to install an older version than the one installed in the other profile.
- You're trying to install a version of Mullvad with a different signature (so, same app id, different signatures)
Both of those things will result in Android not letting you proceed with the installation/update of an app.
Since you have it in owner, use the feature mentioned above and you'll be golden.