H801 RGBW strip PROBLEM

Quite new to the world of SmartHome and the H801. Flashed to H801 with Tasmota without any problems

Got some trouble selecting colors on the RGB template, the colors Red, Green, Blue and the effects are working fine on the smd5050 strip.

But when i select custom colors in HomeAssistant (The light colors for example, light blue, Yellow, or other colors on the inside of the RGB template, the rgb strip is going flashing, and then H801 a custom color, reconnect the strip.

What is causing the flashing and what is possibly a solution?