Mismatch in Operation time in Manufacturing

I created a BOM with a quantity of 100 and added an operation called Roasting with an operation time of 5.45 minutes, meaning it should take 5.45 minutes to produce 100 units. However, when I convert this BOM into a Work Order in ERPNext version 16, the operation time changes to a different value. Why is this happening?

This is a known bug that I am working on to fix