Thank you very much for sharing the your issue is resolved with XD 37.1 version. Could you please try again Franco and let us know if that works for you as well?
We will try our best to help.
Sorry to hear about the trouble. I tried reproducing the issue on my end and I was able to import the SVG from a network folder synced locally. So please collect and share system logs(https://helpx.adobe.com/creative-cloud/kb/cc-log-collector.html) so that we can investigate this for you. Also, please share the version of XD.