That's the differance between incognito and normal logged in. I noticed this a few years ago and is why TubeBuddy emphesises the importance of using incognito mode in their settings.
YouTube will use your search history etc and overall channel to boost you in your appearance when logged in. Why? I'm not sure, maybe it's to boost our egos to show bias towards us when logged in. But that's why whenever someone shows their rankings, if they're logged in, those rankings don't count for anything. It's only when you're logged out and YouTube is no longer biased to your channel is when you see the REAL ranking results. And I believe this workds for other channels too. where
@Andrew shows up in search results when I'm logged in, will be differant to when I'm logged out because YouTube knows I'm biased towards Andrew because of how many of his videos I've already watched.
Sometimes you'll see Roberto Blake doing experiments on twitter asking people where he's ranking on other people's devices on incognito mode, and logged in to see if there's any inconsitencies in ranking. I suspect even when logged out, the rankings and api are changing all the time as people watch, so the data is always changing.
