I use 3D touch on my phone icon to access some of my favorites. I have noticed lately that once I authenticate and I am on my home screen and I 3D touch on any icon, I will not get the submenu but instead get the ability to move apps around the home screen. Even if I wait a second or two to 3D touch. Try authenticating, swiping up and then 3D touching an app. Does it happen to you? This is not a big deal, just curious Edit: Just to be clear. This only happens when I immediately 3D touch after unlocking or within 1-2 seconds of unlocking.
It sounds like you aren't really using 3D Touch (or at least your phone doesn't think so) and simply doing a long press.
Try doing what I did - adjust the 3D Touch sensitivity in General > Accessibility > 3D Touch to "light" & see if that helps.
This might be somewhat related, but this member started a thread yesterday on 3D Touch issues with extreme sensitivity and Made the necessary adjustments under settings, and still is experiencing problems. https://forums.macrumors.com/threads/3d-touch-getting-in-the-way.2115603/
OK, so others are experiencing this issue as well and it seems to be a bug. No big deal at all, I am sure it will be fixed.
It's been a documented bug in developer release notes since iOS 11 beta 3 or so. I wonder what's taking so long to fix it.
I partially think 3D Touch is fairly intricate both hardware and software, and; maybe there are multiple issues that are causing the problem that have not been fully identified.
This is a known bug since 11.3 beta following 11.3 release. You need to wait 3 seconds after unlocking the device to use 3D Touch
This happens to me all the time and the reason is that I try to use 3D touch while the home zoom animation is still in progress. Apple should change something about it. Wait a second after unlocking and it works normally.
I also have the same issue, I Dont think is a software bug, but an issue with the phone(Hardware), I have a friend with an IphoneX, he does not have this issue, we both are in the same IOS. Thanks