Left arrow key sticky

Haven’t used my minibook to much at the moment and already for the Left cursor arrow key can sometimes take a few split seconds to come back up after pressing it.

It’s like it’s stuck but then comes back up. It’s when you press the left edge of the key. All the other keys on the keyboard seem to be ok. It’s almost spongy.

Anyone else get this issue or know how to fix it?

Thanks for your help