Table control & can already be resized vertically; not executed

What causes this issue?

You are trying to assign attribute "Resize vertically" to a table
control, or the attribute "Variable steploop" to a steploop. Attribute
"Resize vertically" has already been assigned to a table control.

System Response

Vertical resizing can only be assigned to one object.

How to fix this error?

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

Error message extract from SAP system. Copyright SAP SE.