Awkward snapping when loading Game Map stages

Moodle 4.5.5 running latest synced h5p activities

We've observed an issue with game map activities.

On our game map has stages that appear longer than the game map itself (sets of large text areas and images, with occasional interactive elements). This sometimes appears normally, but frequently the view snaps down to elements within the page, such that rather than starting at the beginning, the user sees the middle of the activity. I thought this was due to the frame resizing but it acts inconsistently. On some activities it stays locked to the top. On some activities it snaps somewhere in the middle, on other activities it jumps to the end. No Rhyme or reason that I can see.

This happens across browsers.