Mob Morph 100% crash rate

I recently purchased the Mob Morph template but I haven't been able to create a world with it everytime i get an error that states 

"appearance is taking a long time to load. Proceeding with world generation..."

then nothing the game just hangs up from here and when i exit to the switch main menu to close the software i get the error:

"The Software was closed because an error occured" 

is this a know issue also am i just out the minecoins?