object missing in ID channel

[joonyang]

the object disappeared in all color channel like ID wirecolor.

[joonyang]

here is the image

[TomG]

What are the objects that are missing - e.g. proxies, results of scatters, instances? (I presume you mean the foreground trees, btw)

[joonyang]

yes, as you can see, the trees disappear in ID channel, it happens in many projects recently, I don't know what happened, my version is 5.2, max is 2014.

[GeorgeK]

Do your foreground trees have different material than the background ones?

Can you please make sure that the material is not set as invisible to masks?

[TomG]

And are they proxies, instances, results of scatters, results of some plugin, etc.? :)