# Causes of run-time errors for the display list selector

At run time the selected display does not open and the application logs errors about the display list selector to diagnostics if:

- The selected display has been deleted from the project.
- The operator does not have security access for the display.
- The selected display is the display that contains the display list selector.
- The display change is controlled remotely (by the data source) and a Replace display is assigned to the list item the operator has selected.
- The parameter file specified has been renamed or does not exist.

## See also

Create display list selectors

How the display list selector works at run time

Configure the display list selector (General tab)

Set up states for the display list selector (States tab)