Hi @johnstew
It is possible that you are hitting the max_vars limit on your server and you can fix this by making the following changes to your php.ini file:
max_input_vars = 3000
suhosin.get.max_vars = 3000
suhosin.post.max_vars = 3000
suhosin.request.max_vars = 3000
Let me know if this helps.
