After deletion of watches in the phone, duplicate watches appear again.
For example I deleted 2 watches (BadApps Quartz EU/US), check in the android file manager that the xml was gone. After restart of watchmaker the watches were back again. Look in the file manager the xml files were back.
I deleted more watches that I didn't want, then it looks now that at each start of watchmaker that I get the last downloaded watch duplicated. I one day I already have 5 duplicates of the watch. Looking in the file manager I see the xml files created at different time today.