Issues with .ent files.

[daortir]

Good afternoon everyone !
I am trying to create a custom suitor for my mod, and I am failing at the first step : p.

What I am trying to do is to create a copy of the enemy_suitor's .ent file, and edit it. I thought it would be simple, but here's what is wrong. I create the copy, I rename it, and I can use it in the level editor : the model shows up. But when I try to load the level, it instantly crashes because of access violation.
I did not even edit a single file yet : o.

Anyone knows what I am doing wrong ?

Edit :
I solved the issue by cleansing my ptest folder and installing the suitor files again. I probably messed something up at one point or another. I'm a retard : >.