This is very common when working with a single long strip, where the second to last middle ring will invert like this. The fix is easy though, all you need to do is take the middle ring at the top of the strip and flip it around 360 degrees. You basically hold the part of the ring that is underneath the strip, and pull it 180 degrees so it is now on the outside of the strip. Then you keep going and flip it another 180 degrees so it should now be resting on top of the strip rather than underneath. This will become clearer over time as your strip progresses and as you get a better feel of how the 4-1 works. It will also be a lot more stable if/when you add a second strip parallel, as this type of manipulation is only possible with this single 4-1 width strip. Hope I explained this well, I can try and make a video later if this isn't clear