MCPE Realm Not Working

I have been using MCPE Realms a lot and I found it to be very good. But, ever since the 1.0.0 update came out, my Realm has quit working. By that, I simply mean that whenever I press my Realm, it either says "Unable to connect to Realm" or "Building Terrain" and then crashes back to the main menu. My Realm is a big world that's saved onto my device with an addon applied to it (NOTE: It's absolutely necessary that I keep the addon applied because my world will not work without it). So, I had tried investigating my problem many times with no luck. I replaced the world with the more recent world that we'd been using. I tried to reset the Realm. I closed the Realm. I checked wifi and asked friends. Everyone was experiencing the same problem and I had no good outcome. Recently however, I tried replacing my Realm with a different world with no addons. This actually worked and it let me play on the realm. Then, I tried replacing the world once again with my addon world and it didn't work. The weird thing is that I've seen other people playing on Realms with other addons. It could just be my specific addon but I don't know why. I may need to provide a link or something and have a conversation with devs. I've already tried emailing them but they found no fix. Also, now I've been investigating for two months with no luck which means that I'm wasting my money for nothing. Please help me, I will provide all details below...
MINECRAFT VERSION - Pocket Edition
MNECRAFT UPDATE - 1.0.0 - 1.0.4
OPERAING SYSTEM - iOS 10.2
DEVICE - iPhone SE
WORLD - Minecraft Realm