Incident custom properties disabled

You need to modify the workflow for the project to make those custom properties active and/or required for each step in the workflow:

1. Click on Administration > Incidents > Workflows
2. Click on the "Steps" hyperlink for the active workflow(s)
3. On the next page, click on the New(Default) step in the left-hand column
4. On the Incident workflow step page that appears, make all the appropriate custom properties Enabled = Checked and then click [Update]