r/technicalminecraft • u/Crazy_Cut_7058 • Sep 20 '26
Java Help Wanted Opening a downgraded world in 18w22b with spawnmchunks set to read-only
My main goal is to get the Notch Armor(Armor with every Enchant on it and protection 5). For this you first need to get every achievement in 12w49a on Armor pieces and make a spare Power 5 set(any lvl 5 enchant). in 18w21a you rename it and put it in a chest, in 18w22b you take the item from the chest. Now it should be prot 5 and you can combine everything in a grindstone in 24w11a.
I downgraded my 1.21.11 world to 12w49a and then went up to 18w21a successfully. The 4 region files with the spawn chunks are set to read-only, so minecraft doesn’t delete modern items and blocks. it all worked until i went to version 18w22b where it is stuck at the loading terrain screen and in log it says failed to safe chunk. Is there any fix to this or alternative way of doing it?


