Saving SubLevel Using Levels Tab Destroys Map Build Data Registry

When a Sub Level is currently open (meaning it is listed as the persistent level in the levels window) and you save the level using the levels window the map build data registry will get destroyed.

This will cause an error when you open the persistent level using that sublevel.

NOTES

• While the sublevel is open using save all or right clicking the level in content browser and saving doesn't cause the bug to occur.
• This can be resolved by rebuilding lighting and using save all in the main level using the sublevel.

1. Open attached project
2. Open Box_level
3. In the levels window click the save level icon next to persistent level

RESULT
Map Build Data Registry gets destroyed.

EXPECTED
Map Build Data Registry remains intact.

[4.15] Issues with Map Build Data

[4.15] Issues with Map Build Data