Order not pricing via Order Import but price when open imported order from Front end and run reprice

Hi Team

I am facing one strange issue with Order Import which I have seen for the first time.

For one of the customers when Order is created through Order Import, Unit Selling Price doesn't get populated on the line.

Once the same order is opened from front end and reprice order is executed, price gets populated on the line.

Not sure what is causing this issue.

Please help with the issue.

Thank you

Mirza Tanzeel