DSM is fine, but DTM is not

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Hi,
Sorry in advance if this is covered elsewhere. I didn’t find it on a first look through.

I’ve got an issue with a map I’m working with, and for the life of me I can’t figure it out. The DSM is fine, and any time the terrain only switch isn’t toggled it looks pretty accurate, but when I try and eliminate trees/vegetation by going with the DTM it goes pretty crazy. It turns the whole elevation map one color and won’t even let me use the pointer to check elev.

Any clue on what I may have done to mess this up? It wasn’t this way when I first got it through processing.

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Doesn’t surprise me but definitely have DD support take a look because it might be something they can fix. I would never trust a DTM from any software trying to use a fully automated process unless it is just some trees and vehicles to be removed. We use Carlson Precision 3D Topo to produce DTM’s so we have control of what is and isn’t removed.