To keep any point you require a 1/4" above where the point sits. If not there you can undo slightly and move slightly to give this distance. Or when you machine the seam over the point do it from the back side of the point. Then draw a line so you can just sew leaving a point. Putting a spot og glue at the point may help.
Jenny doak on her periwinkle block had a similiar problem and did a second video . Watch first then find 2.
On a hunter star should have no problem with loosing points as the star is made in a different way. Pm