There's a chance that these reports could be caused by another display issue called screen retention, in which faulty software can cause lingering images that don't permanently affect the screen. (gizmodo.com)
Viewed another way, that would be like installing the eco-city hardware with faulty software, causing the system to underperform, or worse still, overheat. (greenleapforward.com)
According to blockchain analytics website Ether Nodes, nodes running faulty software are currently 65.3 percent Geth and 30.4 percent Parity, the two main ethereum clients. (links2exchange.net)