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I cannot seem to open the map editor, all I get is this error (also in safe mode)
Tried both Proton and the native Linux build, both throw this error

Code:

 20.05909|E|GameEngineLua:Exception| [string "lua/ge/extensions/editor/forestEditor.lua"]:1137: attempt to index global 'core_forest' (a nil value)
=============== Stack Traceback >> START >>
(1) metamethod C function '__index'
(2) Lua upvalue 'initialize' at line 1137 of chunk 'lua/ge/extensions/editor/forestEditor.lua'
  Local variables:
  i = number: 1
  (*temporary) = nil
  (*temporary) = 0x7fb2cc100a00
  (*temporary) = number: 6.93693e-310
  (*temporary) = table: 0x7fb3441a9e28  {1:table: 0x7fb3441a9eb0, 2:table: 0x7fb3441a9ef8, 3:table: 0x7fb3441a93b0 (more...)}
  (*temporary) = 0x7fb2cc100a00
  (*temporary) = <failed to get printable value>: 'expect userdata, got table'  {1:table: 0x7fb3441a9d98, 2:table: 0x7fb3441a9de0, 3:<failed to get printable value>: 'expect userdata, got table' (more...)}
  (*temporary) = nil
  (*temporary) = string: "attempt to index global 'core_forest' (a nil value)"
(3) Lua local 'func' at line 2449 of chunk 'lua/ge/extensions/editor/forestEditor.lua'
(4) Lua field 'hook' at line 694 of chunk 'lua/common/extensions.lua'
  Local variables:
  funcName = string: "onEditorInitialized"
  funcList = nil
  hookFuncs = table: 0x7fb29140ab60  {1:function: 0x7fb291078b80, 2:function: 0x7fb291e86990, 3:function: 0x7fb29173ef38 (more...)}
  (for generator) = C function: builtin#6
  (for state) = table: 0x7fb291d837d0  {1:table: 0x7fb30cc24cd8, 2:table: 0x7fb30cc0de28, 3:table: 0x7fb30ce0b5d0 (more...)}
  (for control) = number: 109
  _ = number: 109
  m = table: 0x7fb2c0089b08  {__extensionPath__:editor/forestEditor, selectToolByName:function: 0x7fb2c00ee258 (more...)}
  func = Lua function '?' (defined at line 2422 of chunk lua/ge/extensions/editor/forestEditor.lua)
(5) Lua upvalue 'initializeEditorExtensions' at line 282 of chunk 'lua/ge/extensions/editor/main.lua'
  Local variables:
  timer = 11.6947s
(6) Lua upvalue 'loadAndInitializeExtensions' at line 333 of chunk 'lua/ge/extensions/editor/main.lua'
(7) Lua upvalue 'setEditorActiveInternal' at line 436 of chunk 'lua/ge/extensions/editor/main.lua'
  Local variables:
  activate = boolean: true
  safeMode = nil
  wasInitedNow = boolean: false
  smoothCameraParams = table: 0x7fb2c0622140  {mass:1, newtonRotation:true, angularForce:400, angularDrag:16, newtonMode:true (more...)}
  state = table: 0x7fb30cb480a0  {version:1}
(8) Lua local 'func' at line 654 of chunk 'lua/ge/extensions/editor/main.lua'
(9) Lua field 'hook' at line 699 of chunk 'lua/common/extensions.lua'
  Local variables:
  funcName = string: "onUpdate"
  funcList = table: 0x7fb291b4d100  {1:function: 0x7fb31c06f0d8, 2:function: 0x7fb31c0ce848, 3:function: 0x7fb31c14cdd0 (more...)}
  (for generator) = C function: builtin#6
  (for state) = table: 0x7fb291b4d100  {1:function: 0x7fb31c06f0d8, 2:function: 0x7fb31c0ce848, 3:function: 0x7fb31c14cdd0 (more...)}
  (for control) = number: 15
  _ = number: 15
  func = Lua function '?' (defined at line 628 of chunk lua/ge/extensions/editor/main.lua)
(10) Lua function 'update' at file '/lua/ge/main.lua:519' (best guess)
  Local variables:
  dtReal = number: 0.0161961
  dtSim = number: 0.0162336
  dtRaw = number: 0.0159456
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