Group play Alva missions

If you have a temple of Atzoatl ready and join someone else's map that has an Alva mission, once you enter the incursion you won't be able to leave the incursion, only the the players that don't have a temple ready. The only way for players that already have a temple ready to be able to leave the incursion is to wait for the timer to run out as you can't interact with the portal. Me and a group of 2 other friends have had this issue every single time under these conditions.

Example:
My friend A does not have a temple ready.
My friend B has a temple ready.
I do not have a temple ready.
I use an Alva mission on a map from my map device and both of my friends join it. Then we go talk to Alva and open an incursion. Once we kill all the monsters inside me and friend A can interact with the portal and leave the incursion. Friend B cannot interact with the portal and has to wait ~40 seconds for the incursion to end.

This issue has been here for the past 2 leagues and still has not been fixed. The only solution is for my friend that has a temple ready to go enter it and leave until all of the portals dissapear and his temple is effectively closed.