Can't load

[yeun5513]

MCEdit Unified bug report template. For MCEdit 2.0 bugs see here : https://github.com/mcedit/mcedit2

Description of Issue:If I call up the map, I'll get it wrong.

MCEdit Version:mcedit2.0.0-bata14

Minecraft Version the world was last opened in:1.15

Operating System:window7 64bit

A screenshot or full text of the error from the console:

MCEdit version: 2.0.0-beta14
Python version: 2.7.15 (v2.7.15:ca079a3ea3, Apr 30 2018, 16:22:17) [MSC v.1500 32 bit (Intel)]
Platform: win32
System version: Windows-7-6.1.7601-SP1
Processor: Intel64 Family 6 Model 60 Stepping 3, GenuineIntel

Obtained a GL context with this format:
Valid: True
Version: 4.6
Hardware Accelerated: True
Depth buffer: True, 24
Double buffer: True
Rendering profile: PySide.QtOpenGL.QGLFormat.OpenGLContextProfile.CompatibilityProfile

Driver info:
GL_VERSION: 4.6.0 NVIDIA 441.41 (4, 6)
GL_VENDOR: 'NVIDIA Corporation'
GL_RENDERER: 'GeForce GTX 970/PCIe/SSE2'

---

Unhandled Exception

Traceback (most recent call last):
File "mcedit2\editorsession.py", line 1643, in viewOffsetChanged (self is a EditorTab)
File "mcedit2\worldview\minimap.py", line 187, in currentViewMatrixChanged (self is a MinimapWorldView)
File "mcedit2\util\raycast.py", line 30, in rayCastInBounds
File "mcedit2\util\profiler.py", line 73, in _wrapper (self is a Profiler)
File "mcedit2\util\raycast.py", line 77, in rayCast
File "mcedit2\util\raycast.py", line 215, in advanceToChunk
File "mceditlib\worldeditor.py", line 831, in getChunk (self is a WorldEditorDimension)
File "mceditlib\worldeditor.py", line 499, in getChunk (self is a WorldEditor)
File "mceditlib\cachefunc.py", line 77, in call
File "mceditlib\worldeditor.py", line 477, in _getChunkDataRaw (self is a WorldEditor)
File "mceditlib\anvil\adapter.py", line 922, in readChunk (self is a AnvilWorldAdapter)
AnvilChunkFormatError: [Errno Error loading chunk: KeyError('Key Blocks not found.',)] None: <traceback object at 0x1AF550D0>

How to reproduce:

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