The stuttering issue with the 2018 12.9 inch Pro is becoming more common now as I have been monitoring the thread on the Apple support pages. Some people with older models have also had the issue happen to them too. For context, My iPad was working perfectly until suddenly in Procreate it began to stutter. From then on, every day, my iPad would start to stutter, not respond to my touch and just freeze for a few seconds. I downloaded many apps to try and clear memory, as well as clearing the RAM but the issue persisted. The most common place it would stutter was between Safari and the News app. Finally, I worked out that when the Pencil was attached, it would be fine, but once the Pencil was detatched, the stuttering would start. So I deactivated Bluetooth and unpaired the Pencil each time but it was happening, thinking that the iPad might be registering erroneous pencil input. It didn’t fix the issue and even when I’d try to write with the pencil during the stutter, the strokes wouldn’t register. Finally it was too much and mostly on one side (the right) and in portrait mode, so I took it to the Genius Bar. The lady who served me was so condescending. Luckily I had Apple Care but very luckily, I had recorded a video on my iPhone of the screen being unresponsive as there could be every chance that I wasn’t able to replicate the issue in front of her. She was telling me it looked like I was using more than one finger at once (WTF), was asking me if I did the force reset, even asking me to show her how I would restart my iPad. I told her I had done everything from erasing all content and settings, to setting the iPad up as new etc. She was giving me options like ‘we could have it checked. There is a chance you could get a new one, but it might be an issue with something you’re doing’. Finally as she was randomly scrolling through it, the stuttering happened to her and no matter what she did, the iPad was unresponsive. It was only then that she actually believed me and ordered me a new unit. She seemed annoyed that she had gone hard on me as if it were my fault so I took every bit of pleasure in the world seeing her fall flat on her face, as well as bringing to her attention the countless people going through the same thing. Unacceptable for a $2000 device! The new one was restored from back-up and so far, so good. No amount of apps open, or web pages can cause it to stutter. This is happening to so many people now - I think Apple needs to realise that it’s an issue and fix it seeing as though this thing costs more than a MacBook Air.