nather potal error

IN v1.14 

AS REGULAR DAY I CREATE MY OWN WORLD AND I REACHED THE LEVEL OF NATHER POTAL I CREATE IT THE I EXPLORE NATHER THEN I COME BACK TO MY HOME NEXT DAY I EXPLORE A BIO 1000 BLOCKS AWAY FROM MY SPAWNER SO I CREAT A NATHER HUB BUT IT SEEM THAT THAT POTAL WAS SPAWN 100 BLOCK AWAY FROM THAT BIO 

HELP 

HELP