I created my own board and added 5 columns. Only 4 show up. I googled. The Atlassian board said to a similar situation, if there aren't any issues in the column it doesn't display.
The 5 columns are 5 different statuses and I have issues in each of the statuses. If I go to the Configuration page, I see all 5 columns. If I go to the board only 4.
1) I actually have an issue with the 'missing' status, so not sure why it wouldn't put it there.
2) More importantly, how can I add an issue to a column if the column doesn't display? (As mentioned, if I'm not on the board I can see the issue I have that has the status of the column that won't show up.)