while playing the realm will boot me out simply saying "timed out" with no rhyme or reason

What I expected to happen was...:
the world to still be the way it was before i got timed out with no error code or anything

What actually happened was...:
it would refuse to allow me to get back into the realm, repeatedly telling me "timed out" without further explanation. and upon actually getting back in. i would find block placements and inventory were rolled back to the last backup save (often a half hour or more back)

Steps to Reproduce:
1. make a 1.17.0 world
2. make the world big, 20k chunks filesize
3. update it to 1.17.1
4. attempt to play for more than hour or two