Hello. After the last update none of my worlds that are over 1 gig in size open.  They all show as corrupted,  even the back up copies were downloaded and show "disconnected from world due to corruption".  The only other world's i have are less than 250mb and work fine,  but all my main projects will not open.  I've erased and reloaded game and all saved data but worlds are still not available. There are never any error codes only corruption messages. 

Any information you have to help would be appreciated since I've been working on these 2 worlds for years.  Thank you.