Im not sure if it was causing the issue but I stripped back the sketches so they were simpler:
- I deleted your circle sketch Guide rail as this may not of projected properly and was not constrained, I used the edge of the bell for the rail
- on both your 2d sketches for the loft I saw there was some reference lines projected through so i deleted them as well as not required and i think they were being used in the loft.
A
