One variable (vertically resizeable) loop already exists. Not executed

Message type: E = Error

Message class: 37 - Screen Painter

Message number: 144

Message text: One variable (vertically resizeable) loop already exists. Not executed



What causes this issue?

The loop factor cannot be greater than the maximum value. The maximum
value is calculated from the number of blank lines to the end of the
screen or to the next non-blank line.

Error message extract from SAP system. Copyright SAP SE.