So we have done several ArcGIS indoors data migrations and are finding a consistent problem, possibly a bug. The generate pathways tool only allows you a range of 0.25 to 0.9 for lattice spacing. The problem is that the spacing is fixed in metric units so when your data is in feet (state plane coordinates), the maximum spacing of 0.9 creates a lattice with 0.9 foot spacing which is too tight and very cumbersome for processing. Two possible solutions would be 1. Allow the user to go to a higher spacing like 2.5 to account for English units or 2. Allow the user to select alternative unites for processing the lattice.