I am new to Premiere and working with Google Earth Pro footage. The footage is 1920x1080, same size as the clip. I may have clicked on "Set to frame size" and I don't think it would have made a difference. At the end of a clip, I add a frame hold. Both clips show motion scale at 100% and yet the size is different: the video is zoomed in, the frame hold is at "real" 100% as shown by the Google Earth watermark at the lower left:

[Attachment 56730 - Click to enlarge]

[Attachment 56731 - Click to enlarge]

This has happened with other clips as well. In the meantime, I found a workaround in exporting the last frame of a clip, importing it again, and treating it as the frame hold. Although the quality differs slightly due to JPEG compression, it's good enough for now.

My system is macOS Mojave 10.14.6 and Premiere Pro CC 2019 13.1.5 (build 47).

Have other people had the same problem?