I have an issue with Ver. Odoo 13, the system stopped calculating the "Cost Analysis" after creating Manufacturing Orders. The report does show, but the values are Zero, and the table of the Cost Structure is empty. The issue is reflecting on calculating the cost of the manufactured items, in the inventory evaluation report, or any other report which shows the value of the manufactured goods.

I'm only using FIFO/Automated as my Costing Method and Inventory Valuation. I have tried to create a demo product and changed the Costing Method to "Standard," but the issue remains as is. I even uninstalled the Manufacturing Module and reinstalled it again, but the problem persists unchanged. 

I even tried to sell the manufactured goods, to eliminate any issue which is caused by the Force Removal Strategy, but to my surprise, the cost of the item remained ZERO. The problem is not limited to one item; it's across the system now. 

One last point, when I cross-check the issue from the Smart bottom in the BoMs, I find that the "Structure & Cost" are appropriately listed and calculated accurately.

Note: I'm new to Odoo, and I'm not sure what I had changed to make to the entire system/products suddenly behave like this when it was working fine.

Looking forward to your HELP, PLEASE...