Can't move anchor

I am unable to move anchor point, I can only create a new one and set anchors, but I am unable to move them, any idea why? Or how?

What version do you have?

This is a bug in the latest beta (1.4.2 550).

Workaround: select the anchor and change its coordinates in the grey info box. You can use (shift+) up/downarrow to increment/decrement the number.

Ah yes, I have the latest beta version. No problem, I managed to work around it.