Empty map bug

[tsmt1001]

I have seen this a few times, but now that I actually have an account here, I figured I'll report it. The bug manifests itself like this - my caravan arrives to a quest tile, and there is no map. Everything is dark, and pawns are not placed, it's like they arrived into a void. The only option at this point is to reload the auitosave and reroute the caravan. I don't remember if I had this problem on the first couple of colonies, before I added mods, but I did fewer quests then, as I was just getting a feel for the game.

I uploaded debug log here, maybe someone can figure it out. But basically, as that tile is generated, this message is logged multiple times:

Exception in UIRootUpdate: System.NullReferenceException: Object reference not set to an instance of an object
at Verse.ExitMapGrid.GetCellBool (int) <0x0005f>
at Verse.CellBoolDrawer.RegenerateMesh () <0x00272>
at Verse.CellBoolDrawer.ActuallyDraw () <0x00028>
at Verse.CellBoolDrawer.CellBoolDrawerUpdate () <0x00027>
at Verse.ExitMapGrid.ExitMapGridUpdate () <0x00079>
at (wrapper dynamic-method) RimWorld.MapInterface.MapInterfaceUpdate_Patch2 (object) <0x00120>
at RimWorld.UIRoot_Play.UIRootUpdate () <0x0007a>

NullReferenceException: Object reference not set to an instance of an object
  at RimWorld.WeatherManager.DrawAllWeather () [0x00000] in <filename unknown>:0
  at Verse.CameraDriver.OnPreCull () [0x00000] in <filename unknown>:0

https://gist.github.com/HugsLibRecordKeeper/d6c821e91750a981f38e70c5aba5ae5d

Adding: this may have something to do with desert environment. When I had a colony in a forest, most of my quest destinations were in a forest of some type, and I have not encountered this issue at all. But when I had a colony in a desert or on the edge of it, and my quests were also mostly in the desert, I've seen this bug over and over.

[Canute]

Hi,
and another one bite the dust. Didn't read that this subforum is basicly for vanila bugs.

at RimWorld.WeatherManager.DrawAllWeather

Some mod cause problems with the weather, i would call "Nature's Pretty Sweet:" as troublemaker.
You should ask the mod author about it.