Tasmota flashed Tuya LED is only showing in white?


I have a Tasmota flashed Tuya LED that I can switch on/off in Home Assistant. Also I can set a colour in the settings dialog.
But if I try to use a colour in a scene it is not working. When I switch on the scene the LED is shortly (only a few ms) seen in the wanted colour, but then it is switched to full white.

How is it possible to use a special colour inside a scene?