I've made a video of the bug here: https://streamable.com/olxm8
This repros consistently on several WatchKit apps we're working on and the above is a video with the simplest code. If you put a WKInterfaceTable and have it paged, drag scrolling is broken. Everything seems to scroll up a few pixels and catch, going under the rest of the UI. If you do another scroll gesture the table itself scrolls properly. Scrolling with the crown seems to do the right thing.
This repros in watchOS 5 and Xcode 10. We didn't have this bug when using watchOS 4 and Xcode 9.
Anyone else running into this have a workaround? We've been trying to fix this for almost a week now with no luck.