Please help the pencil is glitching out

Help my pencil isn’t working i am just making a wall but the pencil keeps glitching any way to solve this?

Do you have Length Snapping enabled in Model Info>Units? If so, turn it off.

nevermind but thank you for the info also i cant find model info

Why “nevermind”?

Model Info is in the Window menu.

the pencil problem was solved for 1 second