Help with Fillet problems and possible workaround :)

 From:  Frenchy Pilou (PILOU)
9596.3 
PS As the third piece from the Top seems have something wrong

Make 1,2,4,5,6 then link as you want 2 to 4 for make the 3 ;)
(Blend... maybe some trims necessary for have same similar curves start-end)

EDITED: 26 Nov 2019 by PILOU