Some bones do not move in pose mode My problem is: I can't move SOME bones in Pose mode. If I try, it only rotates them. 

Yes, I know about "manipulate center points", sadly it did not help in my case. Enabled or disabled it does not make any difference at all.

Here are 2 screenshots:


  I may easily move this and 3 other bones.


This one turns dark orange and rotates, instead of dragging.

As you can see on these screenshots, both bones have exact proportions, same parent and no transfer limitations. Clearing/re-assigning parent bone does not help either. To be honest, I have no idea where else may I search for mistake. Any help will be appreciated!
It is possible this might be related to auto-IK ; try going to the toolbar on the left of the screen, clicking on the options tab and turning off auto-IK.