[COOT] Flying hydrogen issue in coot 0.5

[Jonathan Winger]

I'm building a structure in Coot 0.5.  Upon real-space refine or  
regularize, some of the hydrogens on some residues fly off.  It  
doesn't seem to be the old pdb v3 atom-name issue, since other  
residues in the structure with exactly the same atom names real-space  
refine without any trouble.  Anyone have a fix for this?

Any help would be greatly appreciated,
Jon