Load errors in 4.9.2 after update

After moving my game from engine version 4.7.6 to 4.9.2, every time on start up, I get a slew of load errors.

Everything is along the lines of:

“Error ActiveClassRedirects contains a collision with multiple redirectors for old class named *”

How would I be able to fix this? Any help is greatly appreciated.

Lots of people have had problems with the new engine and no instructions to tell you what to change. In your situation there are classes you have created and the collision censors have too many unknown directions to move something if it combs in contact. Try rebuilding lighting and check the property of you collision meshes. This may do nothing.