Quick follow-up. I accessed a course folder that hasn’t been touched since late August when I published the course with 18.1.4. I imported that SCORM package to SCORM Cloud, and the video player worked as I’d expect…allowed full screen video play.
I made a copy of that course folder and opened it in 18.2. No changes were made to the course, literally just an open and publish. That package was imported to SCORM Cloud, but produced the full screen error I experienced before. The only difference is the Lectora version.