[Smush Pro] WP Smush Pro Question

Hey! Having an issue with WP Smush just on this one client site. Made a quick screenshare to show what's going on: https://www.loom.com/share/ff9022afb8264e558af5f50c9b567e5c

Not sure if it's a plugin conflict or what's going on but I'd prefer to keep using this image plugin and not have to switch to another. Any ideas or help is much appreciated!