Hello, guys. Last night the home row of my right split stopped working all of a sudden (while the keyboard was charging). This morning I started troubleshooting, and while checking the nice!nanos, I noticed they both have a red line on the right side on the usb port, as seen in the attached image. I switched the nice!nanos between boards to check if the board or the nice!nano is the problem and the culprit seems to be the nice!nano.
Are those red lines normal or do they indicate a problem?