So, when importing the world with two separate multiworld management plugins on a spigot server and attempting to import the world in worldpainter I am getting issues with corrupt region data, this happens on all export types, box exports and citywide exports,
you can reproduce this error by going into a exported world and seeing your latest log output thousands of messages a second about chunk location errors, im assuming this is because the export command requires a existing world to overwrite the chunks which is causing the world to assume the chunks are in the wrong location causing the error
[00:14:14] [Server thread/ERROR]: Chunk file at [460, 760] is in the wrong location; relocating. (Expected [460, 760], got [12, 24])
[00:14:14] [Server thread/ERROR]: Chunk file at [450, 761] is in the wrong location; relocating. (Expected [450, 761], got [2, 25])
[00:14:14] [Server thread/ERROR]: Chunk file at [465, 760] is in the wrong location; relocating. (Expected [465, 760], got [17, 24])
[00:14:14] [Server thread/ERROR]: Chunk file at [467, 760] is in the wrong location; relocating. (Expected [467, 760], got [19, 24])
[00:14:14] [Server thread/ERROR]: Chunk file at [451, 761] is in the wrong location; relocating. (Expected [451, 761], got [3, 25])
[00:14:14] [Server thread/ERROR]: Chunk file at [468, 760] is in the wrong location; relocating. (Expected [468, 760], got [20, 24])
[00:14:14] [Server thread/ERROR]: Chunk file at [452, 761] is in the wrong location; relocating. (Expected [452, 761], got [4, 25])
[00:14:14] [Server thread/ERROR]: Chunk file at [463, 760] is in the wrong location; relocating. (Expected [463, 760], got [15, 24])
[00:14:14] [Server thread/ERROR]: Chunk file at [453, 761] is in the wrong location; relocating. (Expected [453, 761], got [5, 25])
[00:14:14] [Server thread/ERROR]: Chunk file at [455, 761] is in the wrong location; relocating. (Expected [455, 761], got [7, 25])
[00:14:14] [Server thread/ERROR]: Chunk file at [454, 761] is in the wrong location; relocating. (Expected [454, 761], got [6, 25])
[00:14:14] [Server thread/ERROR]: Chunk file at [456, 761] is in the wrong location; relocating. (Expected [456, 761], got [8, 25])
[00:14:14] [Server thread/ERROR]: Chunk file at [457, 761] is in the wrong location; relocating. (Expected [457, 761], got [9, 25])
[00:14:14] [Server thread/ERROR]: Chunk file at [459, 761] is in the wrong location; relocating. (Expected [459, 761], got [11, 25])
[00:14:14] [Server thread/ERROR]: Chunk file at [458, 761] is in the wrong location; relocating. (Expected [458, 761], got [10, 25])
[00:14:14] [Server thread/ERROR]: Chunk file at [460, 761] is in the wrong location; relocating. (Expected [460, 761], got [12, 25])
[00:14:14] [Server thread/ERROR]: Chunk file at [463, 761] is in the wrong location; relocating. (Expected [463, 761], got [15, 25])
[00:14:14] [Server thread/ERROR]: Chunk file at [461, 761] is in the wrong location; relocating. (Expected [461, 761], got [13, 25])
[00:14:14] [Server thread/ERROR]: Chunk file at [462, 761] is in the wrong location; relocating. (Expected [462, 761], got [14, 25])
[00:14:14] [Server thread/ERROR]: Chunk file at [464, 761] is in the wrong location; relocating. (Expected [464, 761], got [16, 25])
[00:14:14] [Server thread/ERROR]: Chunk file at [467, 761] is in the wrong location; relocating. (Expected [467, 761], got [19, 25])
[00:14:14] [Server thread/ERROR]: Chunk file at [468, 761] is in the wrong location; relocating. (Expected [468, 761], got [20, 25])```