+1 to this. I wiresharked the traffic between my hue bridge/hubitat to see what was happening, and this seems to be the case for devices that alexa says "ok" to:
0.00 seconds - Packet traffic from Amazon to Hubitat (Encrypted)
0.02 seconds - Packet traffic from hubitat to hue, telling it to turn on living room
0.08 seconds - Packet traffic from hue to hubitat saying that the lights have been turned on
0.10 seconds - Packet traffic from hubitat to amazon (Encrypted)
Now, everytime Alexa hangs for a bit and says that the device is not responding...
0.00 seconds - Packet traffic from Amazon to Hubitat (Encrypted)
0.02 seconds - Packet traffic from hubitat to hue, telling it to turn on living room
0.10 seconds - Packet traffic from hubitat to amazon (Encrypted)
0.12 seconds - Packet traffic from hue to hubitat saying that the lights have been turned on
It appears that hubitat doesn't make a 2nd effort to alert Amazon that the device has responded, or is not waiting for the device to respond before sending information to amazon.
This is ESPECIALLY noticeable in larger light groups. For my hue light group "Everything" which includes 40~ bulbs, Alexa has literally never responded "Ok!" to any command involving them, even though they always turn on/off nearly immediately.
