HomeKit automation power on issue - settings not being obeyed.

[speedingcheetah]

LG Air Conditioner Model
LG LP1419IVSM
POT_056905_WW

Describe the bug
Have set Home app automation to turn on AC unit at set time of day.
(1hr before i come home from work to cool the room down)
They unit turns on fine, but does not honor the Home app settings that were set in the automation.
Unit powers on to last used settings when it was turned off.
Example: Unit was powered off while last set on Cool, Low, 70F. (my overnight/sleep settings)
Automation in Home app is set for Cool, High, 65F.
Unit powers on, but is not set to the Home app settings.
When i open the Home app, it reports the last power off settings state, and confirmed via the LG app, and by looking at the unit itself.
I manually, in Home app, change the temp and fan speed, and sometimes works first time, but often takes at least 2 trys to get it to actually register on the unit.
I have also, sometimes, heard the unit beep multiple times when a command is sent, as if the command is sent multiple times.
When i manually am adjusting the temp and fan speed, i do get errors in the HB log as posted below, but they do work.

Symptom check

Does your unit appear in the Home app? Yes
Is the current on/off state, temperature, and mode being reported? Yes
Does your unit respond to the controls? Yes
Relevant logs

[5/17/2022, 5:08:26 PM] [homebridge-lg-thinq-ac] CoolingThresholdCharacteristic: Failed to set state 18 Error: Request failed with status code 400
[5/17/2022, 5:08:27 PM] [homebridge-lg-thinq-ac] RotationSpeedCharacteristic: Failed to set state 6 Error: Request failed with status code 400