Why, my dear, why?

[The chaser]

Your log ends with:

Code: (Select All)

WARNING: Could not find child with unique ID 39 to attach to bone
'servant_grunt_A_RightCollar' in 'P:/Jocs/Amnesia - The Dark
Descent/Amnesia - The Dark Descent/redist/entities/enemy/Dust/dust.ent'

(IDs from 39-44).
I guess this is what you changed at the entity…have you noticed that you have a filepath like
"P:/Jocs/Amnesia - The Dark
Descent/Amnesia - The Dark Descent/redist/entities/enemy/Dust/dust.ent"
and the Dust-folder is written uppercase?
And did you notice that you have an "Amnesia - The Dark Descent" folder INSIDE the "Amnesia - The Dark Descent" folder?
Maybe just typo or wrong filepath?

No, the filepath is completely ok. It's something with the .ent itself:

In the model editor it opens fine. In LevelEditor crashes.