Missing Panels in ProKit Door or Window

Issue description

Panels are missing in a window created using the ProKit Door and Window tool.

Solution

Steps to reproduce

1. In a window, select a panel, apply a fixed pane then set a custom window sash but mistype or enter a value like "0" into the field.
   
2. Then change the panel type to another setting.

DEF- XXXX

Workflow Error.

Workaround

Clear the custom value from the Custom Window Sash field.

See video below for full steps