Bug with preview filter?

I don't know if you had already saw this problem but sometimes there is difference between "Device Preview" (You can see devices that match the filter rules.) in the filter and in the reality.

For exemple I had a filter write like this "(device.enrollmentProfileName -startsWith " Autopilot")". In Device Preview it detect a device that correspond. But in reality the device was not applicable for this filter.

In my filter I made a mistake. I add a blank before Autopilot.

Other problem I had a filter that don't take Surface hub on Device Preview (That I wanted) but in reality it device configuration was apply to Surface hub because it correspond to the filter...

So I think there is a difference between Device Preview and when the filter is apply. Not the same code?

Did you already saw that?