These could possibly come from the USD calls in export_deform_verts(). In general, this is following the pattern in USDGenericMeshWriter::do_write() to ensure the temporary mesh is freed.
As mentioned in my last comment, meshes generated for USD shapes with time-varying properties won't currently animate. I'm attaching an example USD of a capsule with an animating radius for…
The read_geometry() function needs to have a non-empty body defined in usd_reader_shape.cc to actually read the mesh, as below:
Would be good to create a TODO (or design) task for it now, then.
I created two tasks based on the previous discussion:
Some format issues from the buildbot need to be addressed.
I believe I've fixed the formatting now. Thanks for pointing this out.
