I ordered a keyboard to find out that the arrow keys are broken. It is a full sized mechanical keyboard. I also found out that if I mash the two broken keys, down and left arrow keys, and then press right arrow key that it is registered as a zero. This mainly happens with the left arrow key.
I have restarted my PC, and unplugged the power for 10 seconds, without luck. Also changing the USB prort didn't do anything. I havn't tried a USB 3.0 port, but I doubt that it will do anything, since my cable is USB 3.0.
I posted this on the PCMR subreddit too, but only one person replied in 1.5 hours, without useful info.
If this happens to be off-topic or the wrong forum, I'm sorry, this is my first post on here and I'm not a native English speaker :).