A Microsoft file hosting and synchronization service.
Dear Luca,
As a forum moderator, I genuinely wish I could directly review your devices or OneDrive sync logs to diagnose and fix this for you. Unfortunately, my role here is limited to providing general guidance and solutions that can be applied by users.
Your results point to a regression in build 26.195.1006.0007 when the sync folder is placed directly under C. Since the nested path works every time, tenant permissions, licensing and network connectivity are unlikely to be the cause. The OneDrive release notes don't list this as a known issue for 26.195. A newer Production Ring build, 26.198.1011.0006, has started rolling out, so it's worth testing that build on an affected device first. Until this is fixed, the nested path you found (for example, C:\SomeFolder\OneDrive - Tenant) is the most reliable workaround for new setups.
If the newer build doesn't help, I recommend that the Global Admin in your organization create a service request with Microsoft Support. A technical support engineer can perform a remote session to investigate the situation, verify the backend configurations, and run any necessary synchronization tools to resolve the problem. If the issue requires further attention, they can escalate it to a specialized team for deeper analysis. For detailed instructions on how to get support, please refer to Get support - Microsoft 365 admin. If you don't know who your IT administrator is, please refer to this article: How do I find my Microsoft 365 admin? - Microsoft Support
For additional assistance, use this link to find the appropriate contact number from your region: Contact Microsoft customer support | Microsoft Support
I truly hope you get your issue resolved swiftly. Please know that even though I can't directly intervene, directing you to the correct, specialized support is the most effective help I can provide from my position. Thank you for your patience and understanding. Please let me know if you need anything else. Wishing you all the best.
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