in the RSRD abilities_racial.lst file there is:
Darkvision KEYarkvision ~ Dwarf CATEGORY:Special Ability
Darkvision KEY:Half-Orc Darkvision CATEGORY:Special ABility
Should this second key actually be: Darkvision ~ Half-Orc
Note also the capital 'B' in the ability.
Note also, in the same file, Low Light is defined with the race name first, rather than afterwards with a tilda (~), so different conventions are in use.
Not sure of the validity, but the Gnome 'Speak with animal' traits are all commented out in this file too?
Completed: At revision: 19698
Completed: At revision: 19699