Steps to reproduce:
1. Open "cross0623.zip" project

========== OUTPUTING STACK TRACE ==================

0x000000018004A45E (FreeImage) FreeImage_ZLibCRC32
0x000000018004C366 (FreeImage) FreeImage_ZLibCRC32
0x000000018004CF3F (FreeImage) FreeImage_ZLibCRC32
0x000000018001F6EF (FreeImage) FreeImage_DeInitialise
0x0000000180020309 (FreeImage) FreeImage_DeInitialise
0x0000000180008DD6 (FreeImage) FreeImage_LoadFromHandle
0x00000001800068CE (FreeImage) FreeImage_LoadFromMemory
0x00000001401FD3F2 (Unity) LoadImageFromBuffer
0x00000001401FD501 (Unity) LoadImageAtPath
0x0000000141677420 (Unity) TextureImporter::GenerateAssetData
0x0000000140157760 (Unity) AssetDatabase::ImportAsset
0x0000000140162EC4 (Unity) AssetDatabase::UpdateAsset
0x0000000140165A84 (Unity) AssetInterface::ProcessAssetsImplementation
0x0000000140168B47 (Unity) AssetInterface::StopAssetEditing
0x000000014017098D (Unity) AssetInterface::Refresh
0x0000000141739A34 (Unity) Application::InitializeProject
0x000000014180842E (Unity) WinMain
0x0000000141AECE74 (Unity) strnlen
0x00007FFD91672774 (KERNEL32) BaseThreadInitThunk
0x00007FFD94140D61 (ntdll) RtlUserThreadStart

========== END OF STACKTRACE ===========

Note: Crash is caused by corrupted "verandah-centre-equirectangular.jpeg.meta" file, once deleted rebuilds and does not crash.

Reproduced on: 5.4.2f2, 5.5.4p1, 5.6.2f1
Does not reproduce on: 2017.2.0a4, 2017.1.0b10