Trying to undersand Frame Debugger Batch Cause

Hello folks,

I’m currently working on something and using the frame debugger there are some batch causes that I don’t quite understand and therefore thought to ask for some help/explanations in the community.
For example :

  • Object has an odd negative scaling : for this one I can see that sometimes an object has a -1 value but how does that break the current batch ?
  • Objects are affected by different lightmap configurations : this one is not quite clear to met and don’t know how to try to prevent/fix that.

Thanks