Constraints not visible while sketching

[dineshlama007]

I am using FC version 0.18. I'm following https://www.youtube.com/watch?v=1JFvtkKbxBI&t=297s tutorial to sketch. But when i am drawing lines using polygon tool, it is not showing any type of constraints like if it is perpendicular, parallel etc. Since constraints are very important while sketching, i'm stuck in this problem.

[microelly2]

one tipp: Auto constraints should be on to generate the constraints during drawing.

2019-09-12 08_37_15-FreeCAD 0.18.png (3.98 KiB) Viewed 151 times

[dineshlama007]

They are checked.

[openBrain]

Are constraints visible if you add eg. a rectangle or slot ?

[chrisb]

Try switching autoconstraints of and on again, in case autoconstraints are switched off for this sketch. There is a known issue concerning this.