Simulated RGBW Bulb and Reporting Incorrect Level

I noticed tonight that the Simulated RGBW Bulb does not report an accurate value when set from the ST app. Is this known and expected or abnormal behavior?

From these screenshots you can see I set the temp to 3366, but ST reported 3500. In testing, it jumps by 500 degrees. My use case is to use the Simulated Bulb as an uber-switch, but can’t really use it if I can’t set the color temp to the one I want (i.e., circadian).