White line when i want to snap to smth, incorrect! Pleas Help

when i want to snap to any of the next : end, mid, near, point, etc, a white line appears , and moves my point , and snaps to another points!
my osnap is on , and it appears with smartrack on or off…
and btw how can i attach a screenshot? … dont see here any options

You might have “Project” checked in the Osnap panel…?

THANK you So much
that was pain in the &^%#%$#
what is project btw?

Inside Rhino, press F1 and search for Project in the Help…

thank you