Dieter

I had the same issue in 12 as well.

I simply added a cell above where I wanted the anchor and made that the anchor.

Hi Eshac!
That's a possible workaround.
As in V13 the fixing of the menu when scrolling is a new feature I expect it to work with anchors as well. So Incomedia should fix that bug...
Thanks!
Dieter

As Incomedia seems to be very slow with fixing some bugs I found a better workaround than adding cells above the real anchor (as they tend to screw up the layout):

Add in the code section in your custom style attributes (my header height is 80px, adjust for your needs):
#anchor_home, #anchor_about, #anchor_bio, #anchor_references, #anchor_services, #anchor_contact, #anchor_fb {position:relative; top:-80px;}

Still this in a bug which should be fixed in the software as not all users are comfortable with adding code...