Steps to reproduce:
1. Create a project which has a scene and a cube.
2. Build it to a folder
3. Create a script which spins the gameobject at the speed of a public float field.
4. Attach it to the Cube in the scene
5. Build and run the app by exporting it to the same project location.
6. Errors will be logged:
A script behaviour has a different serialization layout when loading. (Read 52 bytes but expected 56 bytes)
Did you #ifdef UNITY_EDITOR a section of your serialized properties in any of your scripts?