Has anyone had issues with renaming their project?
When I renamed mine,
Medium somehow lost the associated *.asset file, and I was no longer
able to access my project anymore.
I thought hours of sculpting was lost forever, but luckily I was
able to look at another project folder, figure out the plain text
*.asset file was missing, copy it, edit the file names inside to match,
and fake a project id to recover the project.
In case this happens to anyone else, that's how you can recover it.