Might be the Volume you’re using is the default and getting package-managed-overwritten?
Try creating a new Volume in your assets folder (right click project>create>volume profile), attach it to an empty game object in the scene and make sure ‘Is Global’ is checked. You also probably want to do the same for your own HDRPAsset (create>rendering>HDRPAsset), which needs assigning at the top of edit>project settings>graphics.