All files are lost after migrate from Google Drive to Zoho Workplace

After click Migrate button, I received an email says: "Your migration from Zoho Docs to Zoho WorkDrive is complete". But there is no files in Zoho Workdrive. I mean completely empty. It says:

There are no items

Drag and drop or click here to upload.

Anyone has similar issue?

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Moving out announcement - Zoho Sheet!
Greetings! As a way to better interact with our users, the Zoho Sheet team is moving our forum out of the Zoho Docs community and in to its own separate space. This is the first step in creating a stand-alone community for Zoho Sheet. This will help us fit all your queries and posts about Sheet into one community and ensure you receive our forum announcements in a timely fashion. There are also plans down the line to kick-start sessions like "Ask the Experts" and "Tips and Tricks," so make sure to