I left my macbook (2015) connected to the HDMI adapter, which is connected to a 1080p monitor for a few hours after I was using it and I just noticed that the adapter got really hot. I opened the macbook and got a message saying that some USB device was drawing too much power and it was disabled. All that was plugged in was the USB-C and the HDMI cable connected to the monitor. The monitor was in sleep mode for hours, but I think it was still communicating with the macbook and it was hot when i touched it. The regular USB port on the adapter had nothing connected to it. Anyone else notice this? Just found out about it now.