its rare to have to change a whole stock of nocks...some do wear, most have been ruined by near Robin hood shots, or wild shots...check often...
The culprit 99% of the time is the serving...some stock servings on some brands and years come too small or large for all nocks..
Wear or thin serving will result in your issue...a too thick serving causes many tuning issue...
one should have nock "snap"on serving but move up and down serving...or pull back 1 inch, release in safe direction and nock should release...
new servings are easy to replace ...all Pro shops can/will re-serve...
usually a .25 thou serving is used ..or thinner with a tag [strand of serving run full length under serving]
very loose nocks can indeed result in a dry fire if arrow falls off on draw...
Replace serving sooner than Now...lol
Neil