A Microsoft file hosting and synchronization service.
Dear rs_0223
Thanks for raising your concerns in Microsoft Community.
We understand that you are experiencing an abnormal search problem in OneDrive. We fully understand the inconvenience the issue has caused and that the current situation can be frustrating.
It needs to be explained that other users have recently reported problems with OneDrive search. This is a known issue with Microsoft and is currently being fixed. It is expected to be fixed by the end of October.
This search function problem will not cause data loss in your OneDrive. We are sorry that you cannot search for content during this period.
You can also try to search again at the end of October, and we will follow up on this issue.
We are sorry for the inconvenience caused to you. We also hope that this problem can be resolved as soon as possible. Thank you for your understanding.
Best Regards,
Tracy - MSFT | Microsoft Community Support Specialist