Hearthlings Won't construct roof

When I design a building, the hearthlings will construct the floor, walls, and the first layer of the roof, after that they won’t build anymore.
Steps to reproduce:

  1. removed then attempted to reconstruct building
  2. full closed and restarted game
  3. started new village

Expected Results:
to build the building
Actual Results:
heartlings still failed to construct building
they will build workbenches and all required decorations for a building, not the building itself

Version Number and Mods in use:

System Information:

Welcome to the forum, @Bradford98 :slightly_smiling_face:

Can the hearthlings reach the materials needed to craft the roof (wood/stone/clay bricks)? Do you have enough of those to keep building?