Unfortunatelly the forum won´t allow me to upload the mesh. i´ve analyzed it and found no clue as to why it fails, with some meshes it works smoothly
I´m using the latest slicer stable release
You can upload the file anywhere (Dropbox, onedrive, Google drive, github,…) and post the link here.
Please test with latest Slicer Preview Release, too.
Here is the mesh postprocesada.obj - Google Drive
i´ve tried as well with the last preview version