Migrating assets into an existing Unreal project without breaking references

Copying .uasset files between projects in Explorer is the fastest way to break an Unreal project. Use Migrate instead.

Right-click the asset in the Content Browser → Asset Actions → Migrate. Unreal walks the reference graph and brings the dependencies with it. Copying by hand brings the file but not what it points at, and you end up with a project full of missing references.

Two other things worth knowing before you download anything:

• Unreal cannot open assets saved in a newer engine version. Always check which version a pack was built in.
• After migrating, run Fix Up Redirectors on the destination folder to clean up the trail left behind.

What has caught you out when moving content between projects?