Setting light dim or temperature on large numbers of Hue lights

Changing the light temperature or dimming on about 45 Hue lights at the same time is now inconsistent after the latest firmware upgrade 10.1 or maybe a Hue firmware or app upgrade (using the Hue bridge). Similar results by using Groups or by having a long list of lights in the same flow. Execution all on/off works always fine. Any suggestions on what can be done?