You have your resource added to the staff for your project or non-project investment objects (NPIOs) (e.g. Other Work). However, when you click on the Resource Planning link, you don't see any allocation in the Resource Workloads portlet. Also, when clicking on the Allocation tab, the resource does not appear on any portlet.
Note: When you click on the Resource Allocation icon / attribute, you see the resource is allocated to some investments.
Make sure the investment has the status Approved.