For this you can use the “Backup / Restore” command in the Wear Cloud Editor, please uncheck the option to include your contact cloud, and when exporting you can simply select Gmail (or possible other email app) as the sharing application (instead of Google Drive).
Please address it to email@example.com
I will be able to restore your settings on my test device and hopefully will be able to reproduce and fix the issue.
(Please remember to remove the checkmark for the option “include wear contact cloud” since it would send the phone numbers of your contacts in the contact cloud)
Of course I handle all your bugreports and backup data confidentially.