The combat attack displayed when you've chosen Gold Dragonborn as your race shows that the type of the saving throw is CON when it should be DEX. Also, for some reason, on at least one character it's not showing the right DC for this. (Instead of 12, it shows a 10. On another character, it gets the DC right but the type is still CON.)
I haven't tested every possible combination, but this doesn't seem to be a problem for other Dragonborn ancestries.
The combat attack displayed when you've chosen Gold Dragonborn as your race shows that the type of the saving throw is CON when it should be DEX. Also, for some reason, on at least one character it's not showing the right DC for this. (Instead of 12, it shows a 10. On another character, it gets the DC right but the type is still CON.)
I haven't tested every possible combination, but this doesn't seem to be a problem for other Dragonborn ancestries.
This should be fixed now, let me know if you see more issues.
Thanks.