I built some scenes using the editor but I’m finding that when I execute the scenes the brightness of the light stays at 100% even though the brightness slider is at 5% (the value in the scene). The values are al correct in the generated YAML.
There seems to be a disconnect between the slider (and the value set in the scene) and what actually happens when the scene is set.
Not sure how to narrow down whether this is an HA issue or an issue with MQTT or Tasmota. Any suggestions?
Post the relevant parts of your configuration.
One of the difficulties of the increased gui settings, they are not amenable to being conveyed simply on a forum in the same way as text files are.
He did say:
Ok, here is a copy of the YAML
id: '1583467146758'
name: 'Goodnight Cade '
entities:
light.cade_lamp:
friendly_name: Cades Bedroom Lamp
state: 'off'
supported_features: 41
light.cades_bedroom_light:
brightness: 5
effect: none
effect_list:
- colorloop
- random
friendly_name: Cades Bedroom Light
hs_color:
- 0
- 100
rgb_color:
- 255
- 0
- 0
state: 'on'
supported_features: 61
xy_color:
- 0.701
- 0.299
As I said, I don’t believe this is a YAML issue as the value is correct and the slider in the GUI does drop to the correct value even though the value in the light is not correct.
I am seeing this happen with all of my tasmota lights though it doesn’t seem to happen with my Hue lights so I assume there’s some sort of race condition taking place. I can’t be the first person that this has happened to, can I? 
Awwww crap…that scene isn’t a good example an it’s not a Tasmota light though it is a Tradfri light (controlled by my Hue hub) and does exhibit the problem.
The Tasmota issue is with this scene:
- id: '1583043049522'
name: Exterior - White Lights
entities:
light.exterior_garage_left:
brightness: 255
color_temp: 153
effect: '0'
effect_list:
- '0'
- '1'
- '2'
- '3'
- '4'
friendly_name: Exterior Garage Left
hs_color:
- 0
- 0
max_mireds: 500
min_mireds: 153
rgb_color:
- 255
- 255
- 255
state: 'on'
supported_features: 23
xy_color:
- 0.323
- 0.329
light.exterior_garage_right:
brightness: 255
color_temp: 153
effect: '0'
effect_list:
- '0'
- '1'
- '2'
- '3'
- '4'
friendly_name: Exterior Garage Right
hs_color:
- 0
- 0
max_mireds: 500
min_mireds: 153
rgb_color:
- 255
- 255
- 255
state: 'on'
supported_features: 23
xy_color:
- 0.323
- 0.329
light.exterior_porch:
brightness: 255
color_temp: 153
effect: '0'
effect_list:
- '0'
- '1'
- '2'
- '3'
- '4'
friendly_name: Exterior Porch
hs_color:
- 0
- 0
max_mireds: 500
min_mireds: 153
rgb_color:
- 255
- 255
- 255
state: 'on'
supported_features: 23
xy_color:
- 0.323
- 0.329
Again, this has the same issue. When the scene is set the GUI shows that the light is at full brightness but if you move the slider up and down again you can actually turn the brightness to full (the gui was showing full but the light itself is actually less than 100%)