SureAI

They should go into the Data folder, i. e. where the nehrim.esm is.

It goes to Nehrim\Data. Same folder where the NehrimData.esp is.

Thank you. I used older save, before Soul Fleyer temple and this time everything went as it should had. Drawbridge lowerd when we killed all the soldiers.

First, I love the game!
But it seems like I have the bridge issue as well. I will attach my save game (right before I was teleported to the monastery) - would you mind to take a look and advice on what do I need to do to continue the main quest?
I also tried the you gave the other person in this thread but I was unsuccessful.
I also attached the quicksave when the bridge does not go down...

Try this:

prid 1d86f7
kill

If it doesn't help:

player.moveto 1d86f7
(do this twice if once doesn't work)

and then tcl out of the Monastery.

I have no idea how this happens, but this is not the first time an NPC "disappears" this way, and the only possible reason lies in the engine. There is no script or AI that would make this NPC run into the Monastery (particularly when there is no way to there).