What is the ninth waste?

What is the ninth waste?

Posted by Thomas Newton on Oct 8, 2019 2:45 pm

A fun topic from the past.  There are 8 recognized wastes as described in the lean technology:

Downtime:  

Defects
Overproduction
Waiting
Non use of Human Resources  ( added in America)  Not using people in best way
Transport
Inventory
Motion ( Excess)
Excess processing ( Not customer valued)

What waste should be added to the list?