Also, when I press them again, they disable Caps Lock.
The problem starts to occur in different time intervals, for example, today when I started the computer, it occured after about 15 minutes. When I after that tried to reboot the computer - it occured immediately.
I tried updating all of the software provided for this model on Razer's website and even reinstalled Windows, but it looks like it's a firmware issue rather than Windows issue.
It is also worth mentioning, that all of those keys work, they give input, but the input isn't correct.
Here's a video illustrating the problem: