Vera Plus Notice says device name limit to 30 characters

Vera Pls firmware version 1.7.5186. For device / advanced, I try to change the name of an AEOTEC Multi-Function Sensor, “Humidity Sensor” to “Front Humidity Sensor” and Vera Plus notifies me that there is a 30-character limit on device names. What I want to change the name to is 21 characters. If I put in “Frnt Humidity Sensor” (20 Characters) it accepts it.
Can someone help me with “What’s Broken”?
Thanks.