Knife problems

Hello I’m new to blender and I’m trying to make the knife tool work but when I try to use the knife tool on the two vertices selected, it doesn’t cut the far left one. What am I doing wrong and how do I fix it?

r/blender - Knife tool not working

The knife tool can be a little tricky at times. As a guess, I would say where you are trying to finish the cut is not part of the face you have cut across. You can turn on snapping to vertices and this may help or try making a longer cut if possible.