I am following Michael Goldfarb's Rigging Series 01 HDA & SPINE tutorial. At 10:30 into tutorial Mike draws pelvis bone off base of
spine using the B key to do this. When I try to do this the bone drawing cursor appears and moves as I move the mouse but does not draw a bone. When I release the B key and the left mouse button a bone draws with mouse movement.
I thought there might be a problem with my wireless keyboard so I plugged in a USB keyboard to the computer. Same problem.
I am using Houdini Apprentice 17.0.416 on Windows 10
Has anyone experienced this problem?
Is there a workaround?
Snap the pelvis bone base to the spine base?

there is some slight Kung fu involved…
holding down ‘b’ will allow you to draw bones from locations that already have bones
holding shift or control will allow you to draw bones from existing bones
and turning on point snapping will allow you to start drawing bones from exact positions

hope that helps

Thanks for the advice, and the rigging tutorials.