Why is OnValidate() executed several times?

News & General Discussion
1

Hi there,
why is OnValidate() executed several times?

Cheers

2

More precisely described: Why is OnValidate() executed multiple times during play mode?

3

Do you have public fields where the values are changing during your play? It may be that it is detecting these public/Inspector fields are changing and therefore executing.
From the docs for when OnValidate executes:

It does also say that it is:

Have you checked to see if it is executing when running a built version? It shouldn’t be.

4

Even with a Debug.Log() it will run 3 times to program start. Therefore it seems to have nothing to do with changeable variables. But why so often? In the built version it is not executed.