I ran some missions in Egypt a few days ago after my patron status had expired. This morning I purchased a new Patron, but the cooldown on these Egypt missions is still just over three hours.
Patch 2.1.4 states: Purchasing Patron will now reduce existing mission cooldowns to a maximum of 8 hours.
This clearly has not worked!
I last played over 10 hours ago (as non-patron), so it isn’t a hang-over from that.