Minecraft realms is not saving progress properly

I know this may be similar to a previous realms report however even though it said the issue was fixed, it appears not.  This glitch makes it so that certain progress points are not saved properly, a few examples of this are, killing the wither. We tried to spawn the wither in the end on the realm, however we died multiple times while killing it. Eventually we managed to kill it, but when we left the end, and rejoined later we found that the wither was still there, our inventories remained the same, the state of the end was the same, the only different thing was the wither was still there. Another example of this is during the ender dragon fight. I was killing the dragon and it was below half health with all the crystals gone, it killed me and when i came back, its health was back to around 75 percent. I am not sure if this glitch just happens in the end, but it is strange as it doesn't affect inventories. I had also attached a clip below of us killing the wither using commands (only because I didn't want to kill it again, however the glitch still happens killing it normally) and it respawning, however it was to large, but i showed us killing the wither, leaving the realm, then rejoining and it being there even though we still had the nether stars from when we just killed the wither.