Pressing ipad keys are getting less sensitive and not always typing characters!

i've been watching this for some months because i'm finding it hard to understand/believe whether my obserations are an iPad problem or user error. plus the problems im tracking are intermittent.

But after much observation, i can say that pressing the virtual keyboard keys on my relatively new iPad Air are deteriorating.

Sometimes the keys don't sound, but the character is placed on the page.

Other times pressing a key doesn't place a character on the virtual page, but the key makes a sound.

Other times, the key sound is muted or distorted and the key character may or may not get placed.

i cant determine any reason or circumstance yet why or when these issues happen. i cant make them happen on purpose

for example. pressing the keys harder or softer "may" be a factor but not sure. the "b" and "u" of "but" after "factor" just now

didnt make a sound, but "printed" the b and u. the "t" in the after printed didnt sound either. im quite sure im pressing the keys

with ample and fairly consistent pressure.

any one have any thoughts? fix ideas?

thanks

steven