Found the issue from debug log:
- WooCommerce stores as: attribute_Color (exact case match)
- We were trying: attribute_color (lowercase) ❌
Fixed:
- Use 'attribute_' + exact attribute name
- get_post_meta with true flag returns single value (not array)
Result:
- Variation #362: {"Color": "Red"} ✅
- Variation #363: {"Color": "Blue"} ✅
Removed debug logging as requested.
5129ff9aea