Report:

First Run after NEw Installation No Freeze
Able to play the game.
Played for 5 minutes.
Quit

Second Run able to get into game No Freeze
Played for 5 minutes
Save game = Just started
Quit

Third Run able to get into game No Freeze
Loaded = Just started
Played for 5 minutes
Save game = Lanilor Freezed
Played another 5 minutes
Created Quicksave 1
Quit

Fourth Run able to get into game No Freeze
Loaded = Quicksave 1
Played 30 minutes
Got an upgrade
Clicked on Upgrade menu Freeze

Hit reset....

Raze
I checked the files like you suggested there is no files set to read only
I have that directory set to obtain it's attribute rules from the parent, so all files that goes into the directory will have no attributes set to it.

I only log on my machines as adminstrator, so I have every right possible

Installed game + patch + without running divinity
399 files and 22 folders

After playing the game for a few minutes
444 Files and 24 folders

Deleting files like you suggested, making copies and replacing them does not work.