Help with libre reading

This is why the advice is to test with a finger prick before correcting a high or low.
That said, I have never experienced my Libre being so far out but I have read of another similar anomaly.

When they're that far out, it's worth washing your hands again, and checking with finger prick again in case you had something on your hand, or a faulty test strip.

I've been using the Libre for a couple of years and had this a couple of times, on both occasions the Libre had failed to deploy correctly meaning the filament had not properly penetrated the skin. On careful removal the filament was clearly bent.

Both times Abbot replaced the sensors.

By the way welcome to the forum, sorry should have said that on my previous post.

A lot of people find it helps the sensor be more accurate from day 1, if they apply a sensor and don't activate it for 24 hours (some leave it 48 hours). When you apply a sensor you're creating 'trauma' at the site, and your body doesn't like it. By applying it a day or 2 before activating it, your body's got used to it and doesn't react in the same way.
I've certainly found it helps it be more accurate, but it can still take a day to settle in.