No matter what group I choose when I'm setting up a new field, it puts it in a random group. When I go in and change the group and save it it says that it's saved the right group, but in the list of fields it still shows up in the random group.

Example: http://prntscr.com/819q7a
You'll notice that "company description" is listed under "Personal Details", but... http://prntscr.com/819qk0 in the field edit screen, it shows the group as "Company Details", which is how it's supposed to be listed.

I am getting really frustrated. Thanks for your help.