Fade out on CCT bulb (with SO92) when set to warm - problem since v13.0.0 about tasmota HOT 5 OPEN

Yes. Thanks for the details. Since it used to work fine, it will be easier to fix. I will work on it

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I investigated problem of fade a bit more... to better follow fade steps i used various speed (2-30).

1. when light is on: fade between CT Warm and Cool and back - works fine.
2. when temp is set to Cool {"POWER":"ON","Dimmer":100,"Color":"FF00","White":100,"CT":153,"Channel":[100,0]}
   Fade in and out (power on/off) - works fine.
3. when temp is set to Warm {"POWER":"ON","Dimmer":100,"Color":"00FF","White":100,"CT":500,"Channel":[0,100]}
   Fade in (power on) - works fine
   Fade out (power off) - at the same time it race through dimm and colour - dimmer reduce brightnes (ok) but it also change temp from Warm to Cool at every fade step (with pure cool at least).

So.. its all about fade out when CT is warm.
It looks like it fade out both channels (instead just PWM1 for brightness when SO92 is set)?

Ledtable on/off doesn't change that behavior.

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Hi,
I'v checked a bit more and... it works as should with tasmota-lite ver. 9.2.0 up to 12.5.0, since 13.0.0 it works bad.

Tested with official builds [https://ota.tasmota.com/]:
tasmota-lite ver. 9.2.0 - OK :)
tasmota-lite ver. 10.0.0 - OK :)
tasmota-lite ver. 12.0.2 - OK :)
tasmota-lite ver. 12.5.0 - OK :)
tasmota-lite ver. 13.0.0 - BAD :( ..dimm with color race!
tasmota-lite ver. 13.1.0 - BAD :( ..dimm with color race!
tasmota-lite ver. 13.4.0 - BAD :( ..dimm with color race!

How to reproduce:
Needed:
Light bulb with Dimmer + CT (SO92: Cold/Warm white - second PWM as Color Temp instead of Warm White)
{"NAME":"Azzardo AZ3206 LightBulb","GPIO":[0,0,0,0,0,0,0,0,449,0,416,0,0,0],"FLAG":0,"BASE":18}

Initial commands:
SetOption92 1
Fade 1
Speed 8
DimmerRange 30,100

Commands to prepare a test:
Power1 1
Dimmer 100
CT 500

Run test with:
Power1 0

Symptom:
Instead of just dimm out it: dimm with changing color from warm to cold white.

How it should work (expected result):
State: Fade is On, Power1 On, CT 500 (Warm), SO92 On
When Power1 Off it should just use PWM1 for dimm steps with SO92 (but it use both PWM1 and PWM2).

Checked on 10 bulbs.

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Anyone read this? Something is missing here or unclear? Any details should be added?

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Yes. Thanks for the details. Since it used to work fine, it will be easier to fix. I will work on it

Thanks.... its good to hear ;)
If You have any question.. just ask.
You can look into LightAnimate() [xdrv_04_light.ino], there probobly shlould be handled SO92 somewhere after call calcGamma.... There is solution for ChannelWhite_when_PWMCT, maybe its good place for fix.

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