Next time you are able to claim rewards they will become available again.
Playing on Xbox One, same console, and have done the Happy at Home event twice. The first time I claimed Practice Makes Perfect, the next loaded save was bugged. CAS and build mode act erractic (broken menu/tools), do a restart, EA's terms and margin adjustments appear and the main menu acts like no one signed in, restart again and Happy at Home starts all over, no issues playing, loading, or launching the game until claiming Practice Makes Perfect the second time: repeat entire process. The items appear in-game until the claimed trait, and then they are gone. The issue doesn't arise in gameplay between claiming previous items.
I've signed in more times than is even required, and there's only five days left.
