SNAP PAC EB2 reverts to Celsius after power cycle

Hello, we are taking temperature readings of various rooms at our facility in Fahrenheit. Our EB2 is set to Fahrenheit in Edit I/O Unit in PAC control. Today I found our power supply had been turned off and when I restored the power all the temp readings that are being displayed on PAC Display Runtime Pro were in Celsius even tho in PAC control it was still set to Fahrenheit. In order for me to get it to display in Fahrenheit again I had to change the setting in Edit I/O Unit to Celsius, Debug, drop back into Config and change setting back to Fahrenheit in Edit I/O Unit and Debug again.
Is there a reason why this is happening and is there an easier way of changing it back to Fahrenheit if it does go to Celsius again?

See How do I save a configuration to flash on an EB? - old forum post