LOS Creation Issues

[Xion]

I tried all the tips about the missing LoS information on Tomb on Annihilation (ToA).
I deleted WOTC5ETOA.dat in the Vault folder and updated (it redownloaded that file). I created a new campaign and tried again.
I can create new walls etc. but nothing is there initialy.
Reverting the map does nothing to LoS.
I know that it worked in the past and now that I wanted to play it with my group its gone :D
I hope someone can help me or find the error?

[LordEntrails]

MOD: moved to new thread, was not related to previous thread.

Which map?
GM maps don't have LOS built into them, Player maps do/should.

[Xion]

MOD: moved to new thread, was not related to previous thread.

Which map?
GM maps don't have LOS built into them, Player maps do/should.

It was releated to the thread. As I had the same problems other users in that thread had.
In Tomb on Annihilation none of the maps hat LoS information included.
Most importantly Fane of the Night Serpent.
The last post in the thread was of the author of those LoS information...

Of course I use the Player maps and not the GM maps for that