Zoho Desk to Project Integration

Zoho Desk to Project Integration

Recently I discovered that my Zoho Desk to Project Integration was not populating the Severity field in Project from Desk when creating a Bug.
Currently, from Desk to Project when creating a Bug only the title pulls through.

How do I map all the other fields like Severity (for example)?

Step 6 says Map your Zoho Desk departments with projects.: https://help.zoho.com/portal/en/kb/projects/integration/zoho-apps/articles/desk-integration#To_integrate_Zoho_Projects_with_Desk

Is this the issue the person who set my mapping up didn't map all the fields or is there limitations?