My project failed to package after upgrading from V 5.4.1 to 5.4.2. Also loading the project I experienced red loading errors (mostly concerning metahumans). After multiple tweaks and hair pulling I found a solution which I am posting if anyone else is having the same problem.
- Clone the project. I added _V2 to the original name. I did this to preserve the original project.
- Delete the Save, Intermediate, and Config folders.
- Restart the project.
- I had to reset a lot of settings in my Project settings such as Maps and Modes, Virtual tex support, Lumen, Virtual Shadow maps, “Enable Missing” for my Metahumans, etc., etc.
- Cook the project.
- Package the project and look for any additional settings that my be needed.
However, after finishing renewing all my settings the game opened perfectly without errors or warnings. Packaging worked perfectly with zero errors or warnings.
I hope this helps anyone else that is having similar problems.