Archicad was up to date at the time and the renovation filters were correct.
Moving the elevation 2 marker (which is displaying correctly) into the elevation 1 position would cause it to display incorrectly also. Relocating elevation 2 marker via undo would then cause it to display incorrectly also until and manually updating.
And previously elevation 1 has always displayed correctly and the renovation filter was set to show all also so it isnt to do with the renovation filters.
To resolve this issue a took the following steps.
Make a copy of the drawing in the layout book
Create a new elevation of the problem orientation (do not make a copy of the elevation marker, create a new marker)
Link the copied drawing to the new marker
This caused both drawings of the problem elevation to display correctly. Like it had been updated.
AC26 AUS Full