Cook fails on Push, but works with Launch

[Dee_Kay_Bee]

This was very insightful. Altough my island has progressed beyond this issue (essentially I reverted to an older version pre-v36 and redid a lot of work), I have performed some tests that may help others. NB I was using a system where I passed in a material to an editable in verse.

Editor:
If the @editable material is assigned to None - then it will fail validation

Verse:

1. • If I assign the default Material to Empty - then it will fail validation - eg @editable AvailableMaterial : []material = array{}
2. • If I assign the default Material to a valid Material - but a custom material - then it will fail validation - eg @editable AvailableMaterial : []material = array{Materials.MyCustomMat}
3. • If I assign the default Material to a valid Material - but a material Instance that references an in-built material - then it will work - eg @editable AvailableMaterial : []material = array{Materials.MI_Old_Log_FacadeDark}

Using Step 3, then manipulating the material in Verse worked.

I plan to move away from Prop material manipulation due to Mesh Sequences and Scene Graph. The Props seem to be failing for me regardless of the above.