Fog of war re-covers map, until I drag the map view around

Boidster

Boidster

Refugee
I've had this issue for a loooong time (since A17 I think at least) and I vaguely remember talking about it a year or more ago, but I can't find any General Support threads referencing it, nor anything in the known issues document. I will search to see if I ever put in a bug report. And but so, my symptoms are these:

1) Explore the world and the FoW correctly clears away

2) Next play session, the FoW has returned for much of the explored area

3) Dragging the map view around will cause a section in the center of the view to clear the FoW, back to its former (explored) state

4) With enough dragging, I can eventually clear all of the explored area back to its non-FoW state

This is on a dedicated server played on my local LAN. Property MaxUncoveredMapChunksPerPlayer = 262144 (enough for the entire 8K map to be uncovered, eventually). This happens on both of two clients - the server itself (AMD GPU) or my laptop (NVIDIA). My co-op partner says he does not experience this issue, which is...odd. This happens with or without mods, on vanilla RWG maps.

 
I searched all bug reports with the word 'map' in them and didn't find a report. This is such an annoying bug that it definitely would have been reported if anybody else on the forums experienced it. So I must conclude: I am the only person in the universe having this issue. Yay.

I made a video demonstrating the issue, with a road I traveled on (days ago) being revealed as I move the map. Yesterday, the entire big town to the west of that road was almost completely re-fogged and I had to drag the map all around it to re-uncover the town (which had been fully explored). Any suggestions are appreciated.

https://i.imgur.com/thXYmvn.mp4

 
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I will that that I have seen something similar before, but it was always due to a sync issue, or because I had mis-matched data in a local cache that was a carry-over from a previous map on the same server. 

 
Hmm. Well I install every new server and client (when a new point release comes out) in a new, empty directory. But I might have briefly run this map in SP before loading it into the server. That would have been on the server PC client. Can't explain why the laptop client - which has only ever seen this map in MP games - would have an issue. On that machine, though, I just do a standard Steam version upgrade + validate. Maybe I'll completely reinstall on that machine and see what happens.

The per-player explored areas are kept on the server, right? So presumably if I reinstall on the laptop, upon reconnecting I ought to have the explored areas uncovered.

Clearly I'm doing some thing consistently incorrectly, since I've had this issue for a year or more, across many different game versions.

 
OMG 💡 in my head:  if I play on this same dedicated server map sometimes from the PC, sometimes from the laptop, the two clients might get out of sync, yeah? So if I explore a huge town on the PC and later move to the laptop, the laptop client might show that town still fogged over?

I will test this idea and if it pans out then I think I can submit an actual bug report. I would think that no matter which client machine I use, the server would push the most current exploration extent down to the client.

 
Boidster said:
OMG 💡 in my head:  if I play on this same dedicated server map sometimes from the PC, sometimes from the laptop, the two clients might get out of sync, yeah? So if I explore a huge town on the PC and later move to the laptop, the laptop client might show that town still fogged over?

I will test this idea and if it pans out then I think I can submit an actual bug report. I would think that no matter which client machine I use, the server would push the most current exploration extent down to the client.
Click to expand...
The laptop wouldn't have the server-side map that you've un-fogged, and it will take time to update the data from the server. This particular sync is extremely slow, and as near as I can tell, only seems to really work at updating the local data when you are looking at the map.

 
SylenThunder said:
This particular sync is extremely slow, and as near as I can tell, only seems to really work at updating the local data when you are looking at the map.
Click to expand...


Interesting, thanks. I assume it's the <player ID>.map files that are being synced? Interestingly, my PC client .map file is larger than the server's .map file for my ID. I did do some exploring yesterday to set up for testing at the laptop. If file size is an indicator, it seems likely that the server doesn't yet have a record of that new explored area and the laptop would probably show the areas fogged even if I examine it on the map.

Off the top of your head, do you know if a bug has been logged? I checked the known issues Google doc and did do a search for "map" in the bugs area, but didn't see anything.

 
It behaved as expected, given your info. I explored some extra map on the PC and then played the laptop and that area was still fogged. I'll get all the details and put in a proper bug report.

Do you know if the <playerID>.map file is portable? Could I just hand-copy it down from the server to each client right before playing? This would require, I suppose, that all explored areas have been pushed to the server when the client quits, but based only on file size that might not be the case. PC client .map file is larger than the server file.

 
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