Hi there,
This issue has been reported about 40 days ago, and still no answer from the support – which is pretty strange, especially because this is a serious issue.
Folks experiencing the same issue: downgrade to version 6.2.6.1, this process fixed the issue for me.
(And based on the silence in this topic room, and on the WP-WPEngine legal war, I wouldn’t count on a fix being published soon…)
