Leaving this here in case it helps someone: You can add a preflight check to throw a warning to catch this. Under the Document section in your preflight profile, check the "All Pages Must Use Same Size and Orientation" box. From there, you'll at least get some indication you should TRIPLE CHECK the document size and not trust any of the measurements INDD is giving you.
Leaving this here in case it helps someone: You can add a preflight check to throw a warning to catch this. Under the Document section in your preflight profile, check the "All Pages Must Use Same Size and Orientation" box. From there, you'll at least get some indication you should TRIPLE CHECK the document size and not trust any of the measurements INDD is giving you.