Closed World corruption on latest Unstable (logs included)

Heya,

So I went to a Forest planet and all was well for a while. At some point I had a hard crash when opening a chest, and then soon after a crash when quitting the game. Since one of those instances - not sure which - the world has "kicked" me back to the ship every time I venture a bit out from the planet spawn/beam-down point.

The attached file is an example starbound.log of this happening. Just thought I'd report this bug.

I don't seem to have the crash log of opening the chest, but the following is the tail of the only log file I have that DOESN'T end with "Application: stopped gracefully". This was me actually quitting the game (integrated server) and it just freezing when closing so maybe/hopefully this is what actually corrupted the world, as I had to force-close via task manager.

[20:13:07.686] [Info] UniverseServer: Warping player 4 to CelestialWorld:797670848:-34105306:14785124:2=4218.24.1004
[20:13:07.727] [Info] UniverseServer: Stopping idle world ClientShipWorld:244264887797084cbb03075deaacc292
[20:14:16.286] [Info] Root: Writing runtime configuration to 'starbound.config'
[20:146.323] [Info] Root: Writing runtime configuration to 'starbound.config'
[20:14:44.784] [Error] Exception while invoking lua message handler for message 'playerStarted'. (LuaException) Error code 2, [string "/scripts/quest/manager/spawn_entities.lua"]:296: assertion failed!
stack traceback:
[C]: in ?
[C]: in function '_ENV.assert'
[string "/scripts/quest/manager/spawn_entities.lua"]:296: in field '?'
[string "/scripts/quest/manager/plugin.lua"]:90: in method 'playerStarted'
[string "/scripts/quest/manager.lua"]47: in method 'playerStartedHandler'
[string "/scripts/quest/manager.lua"]:29: in function <[string "/scripts/quest/manager.lua"]:29>
[0] 7ff65d8d1ed3 Star::captureStack
[1] 7ff65d8d0c5e Star::StarException::StarException
[2] 7ff65d8a60f1 Star::LuaEngine::handleError
[3] 7ff65da57215 Star::LuaEngine::callFunction<Star::String,bool,Star::LuaVariadic<Star::Json> >
[4] 7ff65da5a489 Star::LuaFunction::invoke<Star::Json,Star::String,bool,Star::LuaVariadic<Star::Json> >
[5] 7ff65db233f8 Star::LuaMessageHandlingComponent<Star::LuaStorableComponent<Star::LuaUpdatableComponent<Star::LuaWorldComponent<Star::LuaBaseComponent> > > >::handleMessage
[6] 7ff65dc6b440 Star::Stagehand::receiveMessage
[7] 7ff65dde63d5 Star::WorldServer::handleIncomingPackets
[8] 7ff65ddf7f7b Star::WorldServerThread::update
[9] 7ff65ddf7af8 Star::WorldServerThread::run
[10] 7ff65d8ce9fe Star::ThreadImpl::runThread
[11] 7ff89a9a8be4 BaseThreadInitThunk
[12] 7ff89ac62e01 RtlUserThreadStart
[20:15:03.721] [Info] UniverseServer: Client 'Toki' > (local) disconnected for reason:
[20:15:03.847] [Info] Chat: <server> Player 'Toki' disconnected
[20:15:04.002] [Info] UniverseClient: Client disconnecting...
[20:15:04.038] [Info] Client received world stop packet, leaving: Removed
[20:15:04.038] [Info] UniverseServer: Client 'CosmicDan' <1> (local) disconnected for reason:
[20:15:04.146] [Info] UniverseServer: Stopping UniverseServer
[20:15:04.150] [Info] UniverseServer: Client 'Renaye' <4> (local) disconnected for reason: ServerShutdown
[20:15:05.236] [Info] Closing p2p connection with steam user 76561198011067642
[20:15:05.238] [Info] Closing p2p connection with steam user 76561198001513688
[20:15:05.242] [Info] Clearing steam rich presence connection
[20:15:06.915] [Info] Application: quit requested
[20:15:06.915] [Info] Application: quitting...
[20:15:06.915] [Info] Application: shutdown...