This is an insanly important bug that needs to be fixed Asap
When dismantling stairs/floor on a watchtower the materials will not immediately hit the floor but bounce around destroying any nearby player built structures, this also causes immense lag and wastes so much materials and time.
Reproduction steps
Dismantling the floor/stairs of a watchtower gives causes the materials to have glitchy physics immediately destroying any other watchtowers/fences.
Having barbwire on walls seems to stop the mayhem but it's not a great fix.