[Repro needed] POT/NPC Vendors are invisible

1. Title: POT/NPC Vendors are invisible in Falling Waters Fortress
   
2. Reproduction Rate: 100%
   
3. Blocker? No - but makes life difficult!
   
4. Details: Travel to Falling Waters Fortress outside the crafting pavilion and look for NPC Vendors - there should be 6 there but they are invisible.
   
5. Steps to Reproduce: Automatic if you travel there.
   
6. User Specs:
   
   OS: Windows 10 (10.0.0) 64bit
   CPU: Intel(R) Core(TM) i7-5820K CPU @ 3.30GHz (12) System RAM: 32666
   GPU: NVIDIA GeForce GTX 1080 GPU RAM: 8076
   SotA.EarlyAccess.LIVE.Win.64.662.Date.09.27.17
   Area: POT_forest_metropolis_01a_template/Falling Waters Fortress
   Area Display Name: Falling Waters Fortress
   Loc: (74.7, 38.0, 181.6)
   Debug: UE9UX2ZvcmVzdF9tZXRyb3BvbGlzXzAxYV90ZW1wbGF0ZXxGYWxsaW5nIFdhdGVycyBGb3J0cmVzc3woNzQuNzA2LCAzOC4wMzMsIDE4MS41ODYpfCgwLCAtMSwgMCwgMC4wMDUpfC02NTUuNDIxfDYuNjE2MDQ1fDcuNTYzNjQ=
   
   
   

 

I had this exact issue in Falling Waters Fortress.
I switched from Multiplayer to Friends and the vendors appeared.

 

I am seeing them in Multiplayer mode upon my first zone in...weird.
Yes, I am first going to suggest updating video drivers if they are not Sometimes with a new release that is what it ends up being and it nips the problem in the bud right there.
I do hope we can narrow it down if that isn't it.
@Tazar

Edit: I am curious if this could be a 'scene master' issue so it would be good to know if someone else was in the scene upon loading...for those who always play with the nearby players window open.

 

I did the opposite to make them appear.

 

After finding the NPC's in Friends mode, I left the game and came back later - still in Friends mode.
I went to where the NPC's are and they were gone.
Switched to Multiplayer and they appeared.

Oh, and Video card drivers can't be the issue - since the NPC's are there one time and gone the next with the same drivers.

The issue is NOT on OUR end.
(That wasn't yelling, just emphasis )

 

I have a crafting and cooking vendor in Crossroads that have gone missing as well.

 

Here's an interesting piece of this puzzle.
I caught the NPC's "disappearing" after reentering the scene (with a "mode" change).
Watch the video below and you will see the NPC Banker disappear after appearing when I changed "modes":

 

We are unable to reproduce this internally with what will be build 664. If possible, please retest once 664 is released and let us know if this problem continues to occur.

Thank you.