Gen 5 Glock 17 mags

[Arik]

Loading a bunch of G17 mags and noticed that the new gen 5 orange follower mags acting kinda weird. One one it's impossible to get the 17th round in and on both the 17th witness hole is always empty. And they rattle quite loud

Compared to gen 4

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Gen5


Is this normal? I'm new to gen 5. All my previous Glocks have been gen 3 and mags were a mix or gen1-4


Edit to add. The more gen5 mags I load the more they seem to be all over the place. Some load quite easy and all 17 witness holes show brass and no rattle. Some rattle a little but everything else is fine and others seem to be like what I originally described