Visibility/ population issue

[BlappoSpawn]

Describe the bug I was testing layers of the map in player mode. I switched back to GM and jumped out to a high view. The 2nd layer didnt populate the map in some areas until i went to the 2nd layer specifically

To Reproduce Steps to reproduce the behavior:

1. build a multi level structure 3+ (large)
2. move to a lower level - removing higher levels from view
3. move camera away from part of the upper levels
4. jump to a high level [i went from 1 to 6]
5. move camera around map parts of lower levels do not populate correct.

Screenshots/Videos/Twitch Clips

(above) this is in 6th layer view

(above) this is in 2nd layer view.

Additional context I would like to note that part of the 3rd layer, was built in 2nd layer view... stacking blocks into third layer, But none of those blocks are on screen they are elsewhere in the map.

[BlappoSpawn]

Just to show my reproductions

(Below) from 6th layer

(Below) 2nd layer

[BlappoSpawn]

Im dropping this in, idk why when loading the tiles load all over and then begin to load chunk by chunk if while looking at this code could get the initial loading to begin with the chunk by chunk approach we could avoid this weird thing that was on my screen for like 30 seconds.

[BlappoSpawn]

ALSO when looking at the screen shots click the pictures because those are hard to see until clicked then everything looks normal.

[cbaggers]

There are a few things playing into this issue (one of which is what areas around the players position are updated) and I agree we can do a bunch more to mitigate it. We are changing how fog of war is placed in the near future which will affect some of this but we should definitely keep the loading icon up until the board is fully placed.

[cbaggers]

I've got a small pile of fixes for tile reveal in the release for this weekend. I think it would be a good idea review what bugs in the above remain after that ships