RandomSeed value is not transfered to minecraft:overworld, minecraft:the_nether and minecraft:the_end seed from the WordGenSettings resulting in seed 0 to all worlds from previous versions. It creates odd chunk generations near the borders of newly generated chunks and other issues like that.
MC-186137
RandomSeed not converted to minecraft:dimention seed from the WordGenSettings resulting in seed 0 to all worlds from previous versions
Resolved
Duplicate
0
A11v1r15
(Unassigned)
Unconfirmed
(Unassigned)
20w22a
Retrieved
I will resolve this to MC-186087, we will track this issue from there.