1.18 Corrupted World's, Over 900mb, Old Worlds need Hotfix

1.18 corrupted world, a hotfix would probably do the trick. But the world and its saved copies aren't loading, reverts to a screen that says I need more storage space - I have plenty. This was on a world I have been building on within 7 year since 2014. I know I'm not the only one with this issue, it seems to be for large scaled worlds primarily. Hoping for a fix soon, was so looking forward to 1.18

 

I have a saved copy for a hotfix, but I won't mess around with it until there is one.