Festive Mash-up 2016 bugged since 1.8.0 update

Ever since the new update, the Festive mash-up 2016 has had problems. Basically all plants, doors, torches, ladders, vegetables, and fishing are invisible. Also, if you are not in a shelter when you leave the game, you end up dying when you log in the next time. I have tried other packs on the same map with no issues. I created a festive mash-up world and all the same issues with doors, torchs, plants, etc... were evident right away. Please can someone help with this so we can work on some Christmas fun.