Entering Customer Information not saving

I have been using Q-H, B & RP for several years and have customers and vendors saved within the business area. For some reason over the past few months the settings are not staying saved. For instance, I have a customer that has been saved in for nearly 3years. When I start new estimate and select the customer, their address information does not populate correctly. I open their entry in the customer address book section, I click on format, I deselect the box for Use the first 5 lines on notes instead of address and then click okay and okay. When I close Quicken for the day and reopen another day and try to create a new estimate for this customer, my settings have not saved and I have to redo the format and deselect. WHY will my settings not stay saved? This is happening for multiple customers.
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