First i'm not a well english writer.
Then i have this issue : some key will display the default color that I put on the keyboard for some short milliseconds especially when I use the Rainbow Wave effect, it happens frequently, we talk about 3 to 8 times per minute. It also happens with other modes but it is more rare and with the Color Change effect some buttons will display a wrong color for a few seconds. I have already done a soft reset and I plug on 3.0 and 2.0 but nothing changes. By the way, I plug it on a laptop ROG G552VW I don't know if it can make some issues.