some mesh distortion occures after reloading *.FCStd files containing mesh data.
This seems to happen only on quadratic meshes, where end nodes and mid nodes are mixed up.
after meshing cube looks good (2nd order elements)
after save and reopen mid nodes are treated as end nodes
on 1st order meshes everything is fine
OS: Windows 10
Word size of OS: 64-bit
Word size of FreeCAD: 64-bit
Version: 0.17.10460 (Git)
Build type: Release
Python version: 2.7.8
Qt version: 4.8.7
Coin version: 4.0.0a
OCC version: 7.0.0