...and two other notes on this:
While you do indeed save from the 3D window, a rendering does take place using the current rendering engine, so check your settings there before saving.
Also, Epix export on MacIntel resulted in a file that could not be read on a MacIntel until build 1183, so if you are on an Intel Mac, download the latest patch to ArchiCAD (which I assume is available for the student version?).
Karl
One of the forum moderators
AC 28 USA and earlier • macOS Sequoia 15.2, MacBook Pro M2 Max 12CPU/30GPU cores, 32GB