Map Device Portals Disappear

This has happened twice to me this league. I leave a map to dump to storage in hideout and all my portals are gone. The map device in town still has the portals though and i could enter the map there. Going back to the hideout after this will have to portals show up again at the hideout map device.

Can confirm that this happens. It's as if the portals in the hideout "time out" (as opposed to any instance crash) and disappear from view.

I am having this same issue, any solution?