Well, you're not very descriptive with your posts, so I'm just guessing here: TurnPlaster.gsm is probably a macro called from some opening you have in one the walls you used to create the object. This is not the best way to create an object -- slabs have a much "cleaner" script than walls, and adding openings means adding a lot of macros to the mix. With slabs, you simply "punch" holes as needed.
Model the object on it's side, using slabs, go to 3D Projection Settings, Parallel Projection, select the Side View icon and set the Azimuth angle to 90 degrees. Select the objects and view in the 3D Window -- this should be the "Top View" of the object. Save the object from there.
If this leaves you confused, there are many documents on object creation -- let me know and I can post some links.
MacBook Pro Apple M2 Max, 96 GB of RAM
AC27 US (5003) on Mac OS Ventura 13.6.2
Started on AC4.0 in 91/92/93; full-time user since AC8.1 in 2004