Personal Log #4 not spawning

[Gnith]

First time in the Haze Lab was a day or two ago. Went in, checked the place out ... killed some little robots and mutie bugs ... it was fun ... 
It wasn't until later that I found out there was supposed to be Personal Log #4 right inside the first room, just glowing there on the floor. 
But it is not there.
I've reloaded, tried Singleplayer, and Multiplayer loads... I don't know ... 

maybe there's something else that is supposed to be earlier in the storyline that I haven't completed properly ... 
But I'm on the "Search Other Labs for Evidence of The Watcher" .... 
and I thought that was next ... 

of course I also have multiple copies of several of the notes and logs .... so there is that ...