(example: 2.79b release)
(example: 2.80, edbf15d3c044, blender2.8, 2018-11-28, as found on the splash screen)
Short description of error
I got a problem when I created a wall with archi and I went into sculpting mode and extruded a face for example that the mesh "exploded".
I also miss the function of Archimesh where you easily can click on "Add Wall" and also "Close Walls" Create Ceiling etc. Which makes the addon so handy.
Thanks for the awesome software !
Keep on going !!
Exact steps for others to reproduce the error
Based on the default startup or an attached .blend file (as simple as possible).