annotation and cosmetic thread

Since I tried to add a cosmetic thread on this piece :

- the cosmetic thread never appeared

- and now, annotations (to point out what has to be threaded) are disappearing, as soon as I rotate the view.

What have I to fit, either making viewing cosmetic threads or making viewing the annotations I want to add to the piece (sketch 1)

Tx for your help

SolidworksParts And Features