Seeking solution for Referenced Script (Unknown) on Behaviour (Game Object '<null>')

If this bug has an actual impact on the build, I have yet to find it, but nonetheless I'd like to get to the bottom of it and eliminate it if possible.

In the standalone build for the game, I get slammed with the following in the Player.log when loading particular scenes:

The referenced script (Unknown) on this Behaviour is missing!
(Filename: Line: 198)

The referenced script on this Behaviour (Game Object '<null>') is missing!
(Filename: Line: 334)

A scripted object (script unknown or not yet loaded) has a different serialization layout when loading. (Read 44 bytes but expected 68544 bytes)
Did you #ifdef UNITY_EDITOR a section of your serialized properties in any of your scripts?
(Filename: Line: 2375)


It repeats several dozen times, with different expected bytes from the scripted object each time. I don't know where to start because the script and GameObject errors don't give me any actionable intel.

Any suggestions?

 

do all these errors occur from the same script? Or does the console literally say 'Filename' before the line?

 

Literally says Filename, I have no idea if they're the same script or not. So at least one if not more "Unknown" scripts involved.

 

If you move a script outside of Unity or if you remove a script that was referenced in a scene or project you can get this error.

At runtime, click on the error message and it should highlight the GameObject involved. That can help you track down which prefab or scene it came from and reason about what the script is. Unfortunately Unity is not helpful in terms of giving you the classname.

 

The error doesn't appear in Editor, only in build. Also notice the GameObject reference is "null."

 

Bump, still hoping for a lead

 

Same here!
Tried with any possible editor script to detect missing scripts/dependencies, checked every #if...
No luck.

Doesn't seem to affect the (Android) build either, though.

Unity 2019.4.21f1