Shelly DALI 灯光调节器 Gen3: DaliChannels 5 在冷启动后初始化为 1 通道,但在重启 1 后才能正常工作

I am experiencing what appears to be a cold-boot DALI/DT8 initialization issue with a Shelly DALI Dimmer Gen3 running Tasmota 15.6.0, connected to a Sunricher SR-2309PRO-5C DT8 RGB+CCT driver.

The system works correctly after a Tasmota software restart, but after a complete mains power cycle Tasmota initializes the light as a single-channel brightness light (lt_st:1), despite DaliChannels remaining correctly stored as 5.

Issuing Restart 1 without changing any DALI configuration causes Tasmota to detect/initialize the light correctly as 5-channel RGBCCT (lt_st:5).