I was playing in a realm of one of my friends was in the nether (I was the only person signed into the realm at the time), placed a block and fell into lava. I was hoping to avoid losing all of my items so I closed out of the app. Afterwards, I have not been able to log into that realm on either PC or mobile. I was able to create a new private survival world and play that, but when trying to sign into the realm it just sits while loading at "Joining Realm... Building terrain" and no progress gets made.