MSP430F5528: Bank D of information memory cannot be erased

I am using bank D of memory on the MSP430F5528 to hold some diagnostic parameters for debugging. I currently have 8 boards I am working with, and 4 of the 8 have an issue with erasing bank D. On first programming, it loads bank D with some corrupt data (it should be initially loaded with all 0's). After looking at the memory browser, I was able to determine that the bank did not seem to be erasing. I confirmed it by trying to only erase the memory without programming using FET-pro430 and looking again on the memory browser. Banks A, B and C appeared to erase fine, but bank D still held the corrupt data. Also, these four devices show a fail when performing the Blank Check in FET-pro430 while the other four are working properly. Is there any way to further debug this issue?