Ran FB from Non-precip wx types steps through the end and got an error on the hazard builder step. Then when I ran it again with the exact same time range and actions, it worked fine. Error message looks like it had something to do with the frost/freeze HazardBuilder grid. (We have a frost/freeze coming up on day 5.) Screenshot and error messages attached. Tried again to replicate the error and couldn't get it to happen again.