Hey! 🙂 If you have a Watch 4/5, you're no doubt on the beta, correct? The stable release shouldn't be too much longer, so I'm sure with the final release these bugs will all be worked out. Nevertheless, be sure to report this in the One UI Watch 5 beta forums!!
Ah I see now! I hadn't checked personally if they had been added on my end (I'm on the beta with my Watch 5 Pro), sorry about that! There will no doubt be updates for these faces, probably with the stable release. If these errors still persist though, do make sure to send this as an error report in the Samsung Members app's Support tab>Send feedback section.