PCGen 5.16.2, latest Java.
Create druid, human, wis 16, other stats don't matter
Select Druid Domain for Natures Bond, and select Weather as the domain
On the Domains tab, Weather domain is black, all other druid domains in red.
1st issue: Cannot select weather domain. Error on dos console "No more allowed domains"
2nd issue: Select deity and that deities domains are added in black with any druid domains that are not also that deity domains still in read. Also still cannot select a domain with teh same dos console error message.
3rd issue: Level up druid to level 2 and the domain becomes selectable. De-level and both issues return