LED's don't change color on iFlight Evoque F5X analog after update from BF 4.3.2 to 4.4.0

[FlyMarc2]

I updatet my iFlight Nazgul Evoque F5X analog from Betaflight 4.3.2 to 4.4.0. Now the LED's don't change the color anymore when battery voltage gets less. In BF 4.2.11 and 4.3.2 the color changed from green (battery full) to orange and red (battery empty). Withe BF 4.4.0 the LED's stay green.
Did somebody have the same problem and could solve it?