A Microsoft file hosting and synchronization service.
Hello,
You can try resetting OneDrive using the steps here-
https://support.microsoft.com/en-us/onedrive/reset-onedrive
If these steps did not resolve the issue,
- Right-click the OneDrive icon on the taskbar to check whether syncing is working properly. If you get any Sync error message, share the complete error message here.
In addition to this, check whether the folder you created on Computer A is reflected in OneDrive online. If there are any Sync issues with the device itself, the folders may not sync there, so we need to check that device as well.