I had a closer look at mine, and it looks just like the one in your picture.
You see the insertion needle, the filament is hidden inside.
After making the picture I applied this one as usual.
If you feel the needle when putting against your skin, it's faulty in a way, but in a way you can easily solve yourself. Still, theu will replace if you call about it.
Should it happen again, simply gently pull the blue part up until it clicks in place, I had to do so with this sensor as well.
Can it be that this experience with a real faulty sensor has made you look closer than you have before, and thus noticing the long needle for the first time?
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