Same exact issue, tried on two different Nintendo Switches, then tried on Pc.. PC worked perfectly without a hitch. But because the realm I am trying to use is saved on the Switch it's irrelevant that it worked on the PC. Now I've wasted $40, renewed one realm - that didn't work. Wouldn't let me export the world to the realm. So I figured I would try an put it on a new realm. Nope... same issue. $40 down the tubes because Microsoft can't figure their ish out.
Attempted to load up my realm server today, got this same exact error code. Running version 1.14.3, its a new realm so the file size is 67mb and does not come close to cap.
running vanilla with no mods.
Started getting this error yesterday. It’s been a while since I had a realm because I had so many issues before. I tried multiple times to upload a world. World is only 27mb and is vanilla. Made a copy of it to try and see if that would work and it didn’t. Tried replacing the realm with a brand new world at .7 mb and it still failed. Tried multiple different Nintendo switches. Then I went over to my pc. Worked the first time no issue. Problem is I can’t upload my world to my pc because the only way to transfer is via realms. Which isn’t working. Wasted $40 setting up two different realms. I thought maybe because my first one was old and hadn’t been used in a while that maybe that was the reason. Spent another $20 to set up a second one. Nope same issue. Fix this... there’s so many issues that make this game difficult to play.