Several weeks ago after installing the recent Minecraft update a 1.10 GB saved data file, which I and several others have been building and playing for the last 8 months, would not load and gave me a message "there is a problem loading this world". Once this message appears other tries to load the world will give you the same message and often an error code "an error has occurred in the following application (CE 34878-0) Minecraft". All my other worlds which are 600 MB or less load and save fine with no issues. Also the 1.10 GB save on PS4 Plus is on two separate files (one 1 GB file and one 128 MB file) with exactly the same date and time of save while all the other worlds (less than 1 GB) are are on one file. I can go back to an old save of the 1.10 GB  file several weeks ago from PS4 plus, load it to storage and it will load fine and indicates that the save was successful however when trying to load it again after the save I will receive the message and the error code and the  application will be locked up with the only recourse of restarting the application. As suggested by Minecraft Tech Support I completed the process of saving my worlds from system storage to PS4 Plus, turned off auto upload save data, deleted the system saved data for Minecraft, reset the PS4 and restarted Minecraft, and download the saved data back to system storage. This did not resolve the problem, the exact same issue remained. The issue appears to be the application can successfully load my 1.10 GB world and appears to be saving the world successfully from an old update. Upon exiting however renders the world unable to open or build any of the terrain thereafter. I have also tried various other methods from other help venues and gamer blogs as well as other PS4 consoles that have loaded the most recent update with no success to resolve the issue. I have not been able to find any other PS4s with the old update to try. The older save file from several weeks ago will always load successfully however always encounters the same issue when trying to reload.