Hi chemlabsltd
I apologize for any inconvenience caused.
Please, could you tell us if now your raw materials and product parts, in the product page are displayed as simple products? Do you have any import plugin?
Also, please, I have to ask you to open a private ticket to provide us with your website credentials in order to take a look. And I will have to ask you for permission to download a backup of your site as we will need to make tests.
This is the link to open the private ticket: https://stockmanagementlabs.ticksy.com/
Best Regards,
Andrea.