This has been a very huge issue for me as well. I have zillions of alts and houses. Having only one portal remembered is making things very difficult. I have had lots of issues lately with zoning and just logging characters into the game. I have to exit the game many times cuz characters won't zone or even log in. I have even had issues with the character screen not loading. I have done lots of things to try to fix by deleting files/cache and such. Worse time to happen due to free frostfell presents. I really hope we here if they plan on fixing this issue and really hope it doesn't involve replacing all the portals again or even relinquishing houses and rebuying.