Razer BlackWidow RZ03-0286 Space key lag

Hi All, my space bar key recently is somewhat lagging in terms of when i hold press, after I release it, it takes a few seconds to rise up. The key itself is still working but the delay in the space key rising is very annoying and causes errors in my typing. I have already cleaned the keyboard using wipes and air blowers and the software and firmware are already updated. Please help. Thanks very much!