Troubleshoot Codewarrior C code for saving variable to freescale micro MC9S08DZ128

I have a variable in the attached code rm2 which is saved to the eprom. After programming the micro (which resets everything), rm2 = 65535, which makes sense. Then I save it with a value of, say, 8. When I restart the micro and read it, rm2 = 8, which makes sense. But if I then save it to some other value, it comes back as the wrong value. Sometimes it comes back as the original 8, sometimes something different. I'm an engineer trying to debug code from a very good programmer, who is no longer with the company. I'm hoping a good programmer can just look at this code an see potential problems for me to try as a fix.