2016 Festive Mashup graphics problems (invisible blocks/doors/etc)

When trying to use the 2016 Festive Mashup pack on a realm I'm getting certain blocks that are appearing invisible.  An example of these are doors, torches, and plants.  Its worth noting for some reason when I log into the realm from my xbox one, everything appears normal, but when logging into the same realm on two of my different PCs I get the invisible block problems.  I've also done a little research and noticed this problem appears to have happened at some time in the past, but was supposedly resolved on the Xbox.  It may also be worth noting when adding the pack onto the realm under "active packs" section its lists it twice, once as a file size of 19.2MB and again as a 1.8MB pack.