Log questions

[gilflo]

I got a lot of line like this one repeatedly in my KSP log

Serialization depth limit exceeded at 'OcclusionData'. There may be an object composition cycle in one or more of your serialized classes.

(Filename: Line: 67)

Serialization depth limit exceeded at 'ThermalLink'. There may be an object composition cycle in one or more of your serialized classes.

(Filename: Line: 67)

What does it mean?

Is there something to do?

[sal_vager]

They are harmless, but I have found no way to stop them.

They are much like the "wheel requires a rigid body to function" message, just like the wheels need to be attached to work, the occlusion data and thermal links don't really exist until you have put the parts on your craft and launched it, at that point they work correctly and there's no further messages written to the log.

[gilflo]

OK thank's