if i import a Recon M *.m file into Rhino 8 (Windows) and try to delete the *.m file, it fails saying the file is still in use by Rhino. It remains locked even after opening a new Rhino document. Once Rhino is closed, the file can be removed.
I’ll admit that this is the first time I’ve heard of a Recon M file…
It doesn’t look like this is something that we export from Rhino, could you post a simple .m sample that we can use to troubleshoot?
-wim