Select loop end below first loop block

What causes this issue?

You are defining or editing a step loops and have chosen <LS>Select
loop end line</> and the cursor is on a line above the step loop.
The cursor position should define the line down to which the step loop
should extend.

System Response

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

How to fix this error?

Place the cursor in a position far enough down the screen so that you
can form a step loop which comprises at least two repetition blocks.

Error message extract from SAP system. Copyright SAP SE.