I purchased a UD-CAM from Amazon recently and have been using it with my Macbook Pro 2017 for about a month with no issues.
A few days ago my laptop started running extremely slowly and I realized that it was due to its battery being almost completely drained. When I looked at the battery display icon it did show the lightning bolt through the battery icon insinuating that it was charging, but when I clicked on the icon the dropdown said that it was not charging. I pulled the USB-C cable (the one that came with the docking station) out of the port on the laptop and reinserted it, but that didn’t change anything. I moved it to the other port and it began to charge the laptop. I thought that was odd, but figured I would just use that port going forward.
Then yesterday, my peripheral monitor (HP 22cwa) started losing connection with the laptop and then popping back in, mimicing the behavior of me unplugging the cable and reinserting it. It happened a couple of times, but never remained offline for more than a couple seconds. This was in the second port of the laptop.
Later that evening, the computer slowed down because the battery had drained again, still while plugged in, and still showing the charging icon, but again stating that it was not charging when I clicked on the drop-down menu. This time, I tried both ports with no success. When I plugged the laptop into the wall using the Apple-provided cord, it began charging immediately. I retained the Plugable cord in the other port in order to continue using the peripheral monitor, but the power was being drawn from the Apple cord.
I’m not sure what sort of trouble-shooting I can try here, but happy to do it and get this issue sorted out.