Hi Kim, since upgrading to iOS 13 & Watch OS 6 I'm having some issues with the 'Focus' task list I've set up. This takes the content from 5 lists and displays items due today. Under the prior OS's it worked perfectly. Now when I look at the app on the watch it shows 25 items (correct), but the watch only shows 8 items. Removing the app from the watch fixes the issue but only for a few minutes, then the tasks shown reduce again.
I've not been into the native Reminders app so the database has not been upgraded as I need functionality across the iPhone, Mac and iPad.
Hope this is a know problem, with a fix in the pipeline.