Not able to draw straight line in autocad 3D

Dear Sir,
I am not able to draw straight (Horizontal) line in AutoCAD and Ortho is ON.

Dear Sir,
I am not able to draw straight (Horizontal) line in AutoCAD and Ortho is ON.

Dear Learner,
Welcome to LearnVern! We are happy to serve you.

You have to select TOP, LEFT, FRONT any View plane prior to draw straight line. Do not keep it in Perspective view.

We hope our reply serves your query well.
Keep learning.


Thanks and Regards,
Monik
Team LearnVern.