I know what you mean because I use the same test watch face over and over and not normally but often enough it caches something. So, I’ve gotten into the habit of deleting the watch face before sideloading the newer version.
Regarding the size and appearance of complications, I also see the issues with some complications as well. I don’t know if they are not updated for API 30 (Wear OS 3) or if there is another issue.
Ron
Samsung Developer Relations