My realm is a survival creative world. Basically I used universal Minecraft editor to give myself command blocks then set the world to never be in creative mode so I can get achievements. Yet now not only are my command input disappearing, but I can’t get achievements before despite being to after I edited everything like a week or so ago. So I assume Minecraft might of patched it and command blocks without activating cheats on meaning no more achievements in creative mode.
So I added a hover note to my new command block and it appeared to save that. So I added a command into the command input and it saved. Even ones I put them down before the command input started disappearing didn’t have hover notes and wouldn’t update when I tried putting them into always active. Yet added a hover note to both of them and they finally saved.