18:36:47 Sketcher constraint number 5 is malformed!
18:36:47 Sketch Sketch115 has malformed constraints!
18:36:47 Sketcher constraint number 5 is malformed!
18:36:47 Sketch Sketch138 has malformed constraints!
18:36:47 Sketcher constraint number 5 is malformed!
18:36:47 Sketch Sketch137 has malformed constraints!
18:36:47 Sketcher constraint number 5 is malformed!
18:36:47 Sketch Sketch136 has malformed constraints!
18:36:47 Sketcher constraint number 5 is malformed!
18:36:47 Sketch Sketch134 has malformed constraints!
18:36:47 Sketcher constraint number 5 is malformed!
18:36:47 Sketch Sketch135 has malformed constraints!
18:36:47 Sketcher constraint number 5 is malformed!
18:36:47 Sketch Sketch113 has malformed constraints!
18:36:47 Sketcher constraint number 5 is malformed!
18:36:47 Sketch Sketch111 has malformed constraints!
18:36:47 Sketcher constraint number 5 is malformed!
18:36:47 Sketch Sketch106 has malformed constraints!
18:36:56 Sketcher constraint number 5 is malformed!
18:36:56 Sketch Sketch106 has malformed constraints!
18:37:09 Sketcher constraint number 5 is malformed!
18:37:09 Sketch Sketch115 has malformed constraints!
18:37:09 Sketcher constraint number 5 is malformed!
18:37:09 Sketch Sketch138 has malformed constraints!
18:37:09 Sketcher constraint number 5 is malformed!
18:37:09 Sketch Sketch137 has malformed constraints!
18:37:09 Sketcher constraint number 5 is malformed!
18:37:09 Sketch Sketch136 has malformed constraints!
18:37:09 Sketcher constraint number 5 is malformed!
18:37:09 Sketch Sketch134 has malformed constraints!
18:37:09 Sketcher constraint number 5 is malformed!
18:37:09 Sketch Sketch135 has malformed constraints!
18:37:09 Sketcher constraint number 5 is malformed!
18:37:09 Sketch Sketch113 has malformed constraints!
18:37:09 Sketcher constraint number 5 is malformed!
18:37:09 Sketch Sketch111 has malformed constraints!
18:37:09 Sketcher constraint number 5 is malformed!
18:37:09 Sketch Sketch106 has malformed constraints!
18:37:12 Sketcher constraint number 5 is malformed!
18:37:12 Sketch Sketch115 has malformed constraints!
18:37:12 Sketcher constraint number 5 is malformed!
18:37:12 Sketch Sketch138 has malformed constraints!
18:37:12 Sketcher constraint number 5 is malformed!
18:37:12 Sketch Sketch137 has malformed constraints!
18:37:12 Sketcher constraint number 5 is malformed!
18:37:12 Sketch Sketch136 has malformed constraints!
18:37:12 Sketcher constraint number 5 is malformed!
18:37:12 Sketch Sketch134 has malformed constraints!
18:37:12 Sketcher constraint number 5 is malformed!
18:37:12 Sketch Sketch135 has malformed constraints!
18:37:12 Sketcher constraint number 5 is malformed!
18:37:12 Sketch Sketch113 has malformed constraints!
18:37:12 Sketcher constraint number 5 is malformed!
18:37:12 Sketch Sketch111 has malformed constraints!
18:37:12 Sketcher constraint number 5 is malformed!
18:37:12 Sketch Sketch106 has malformed constraints!
18:37:14 Sketcher constraint number 5 is malformed!
18:37:14 Sketch Sketch115 has malformed constraints!
18:37:14 Sketcher constraint number 5 is malformed!
18:37:14 Sketch Sketch138 has malformed constraints!
18:37:14 Sketcher constraint number 5 is malformed!
18:37:14 Sketch Sketch137 has malformed constraints!
18:37:14 Sketcher constraint number 5 is malformed!
18:37:14 Sketch Sketch136 has malformed constraints!
18:37:14 Sketcher constraint number 5 is malformed!
18:37:14 Sketch Sketch134 has malformed constraints!
18:37:14 Sketcher constraint number 5 is malformed!
18:37:14 Sketch Sketch135 has malformed constraints!
18:37:14 Sketcher constraint number 5 is malformed!
18:37:14 Sketch Sketch113 has malformed constraints!
18:37:14 Sketcher constraint number 5 is malformed!
18:37:14 Sketch Sketch111 has malformed constraints!
18:37:14 Sketcher constraint number 5 is malformed!
18:37:14 Sketch Sketch106 has malformed constraints!
Your file was already malformed or at least badly constrained in 0.18, but it wasn't detected then: Edit Basis_V4; it is fully constrained and shows no redundancies. But you can remove Constraint5 and it is still fully constrained.
So everything works as designed and you should fix your sketches.