Reminds me of the fact that filenames in OneDrive are even more restrictive because of some legacy SharePoint software that was representing filenames in URLs.

Reminds me of the fact that filenames in OneDrive are even more restrictive because of some legacy SharePoint software that was representing filenames in URLs. "?" and "#" were not allowed in OneDrive for Business for a long time because they have a special meaning in URLs: https://techcommunity.microsoft.com/t5/microsoft-sharepoint-blog/new-support-for-and-in-sharepoint-online-and-onedrive-for/ba-p/60357 https://techcommunity.microsoft.com/t5/microsoft-sharepoint-... The Rclone documentation has a full list of problematic OneDrive characters: https://rclone.org/onedrive/#restricted-filename-characters https://rclone.org/onedrive/#restricted-filename-characters