Bug in a solve function

[rombva]

Try to solve the inequality: (x^3-1)*(x^2-4*x+4)/(x^2-5*x+6)>=0

The Prime's CAS returns the wrong answer {x>=1 AND x<=2, x>3}. The right answer must be a {x>=1 AND x<2, x>3}. Xcas returns the same result. Point x=2 must not be in the solution list.

The same issue appears with the equation x/x=1. Prime's CAS and Xcas return the wrong answer {x}. Point x=0 must not be in the solution list.