@bclyons12 I realize that this is very late response, but I would like to summarize what was going on, for the sake of record. Recent setuptools have a line import email.message, which eventually call ...
==1990783== Invalid write of size 4 ==1990783== at 0x55F316: mfem::NCMesh::LegacyToNewVertexOrdering(mfem::Array<int>&) const (/home/szampini/Devel/glvis-fork/mfem ...