WD Sync one-way only?

for the record. I bought another passport ultra during the holidays while $70 off and when I had a open support ticket. WD makes great drives, but their software skills are lacking. I’ve been a loyal consumer of their products for years. I’ve only purchased 1 non-WD external drive in the past 10 years.

2015 purchases
1 WD MyCloud 4TB
2 WD MyBook 4TB
1 WD Passport Ultra 3TB

<2015
1 WD Passport Ultra 2TB
1 WD Passport 250GB
1 WD MyBook 2TB (died)