quick take
All teams must take the ferry to Macau.
At Macau ferry they find a clue that directs them to the tower.
The tower is closed so the teams are equalzed.
Under the tower the teams know there is a Yield ahead so they make deals, whatever.
Once the tower opens all teams must find a dress/gift shop to locate their next clue, this is where the yield is.
The teams PULL tickets 1-2-3-4 , first team to pull the ticket gets the Tower/RB first.
Someone is yielded ..since the yield is inside then this can't be the Cha's waiting out a Yield because they are outside.
My take is the Roadblock comes first. Who gets to Yield who is still open for discussion.