Help with sticky keys. (Overwatch)

Good day.
Sufficiently long ago there's a problem that's already got, and with your help I hope to solve it.
After a long game in Overwatch (over an hour), begins as a strange sticky key W (forward). I let her go, the character for a while still running forward (0,5 -2 sec). The more you hold, the longer is sticky.
Really started to irritate, especially when you can not stop before the ledge.
Maybe there is advice on what the problem is and how can it be solved?
May some third-party app interferes with or settings of the system?