Need help

I want to move my WhatsApp data from iPhone to my S22 Ultra. I used Smart Switch by connecting those two phones with a lightning to USB-C cable.

When the moving process started, the data was successfully transferred from the iPhone, and when it continued to my Samsung, it started with logged in on WhatsApp, and came up option to import chat. When I selected "import" and it continued with notification such as "importing data", it became stuck on 83% completion and getting error with "unknown error" message.

I tried four times and it still got error on 83%. I made sure that Chat backup on iPhone completed. 

Does anyone have the same or similar problem? thank you.

Galaxy S22 Ultra