Average reliability not calculated?

I'm working through the scenarios (well, number 2 of the cars haha), and I have everything greens except for the average reliability.
Is the average reliability really rubbish? (It says 0.0) Or do I have to do something to make it work?
Buildnumber is 150409 on steam.
Thanks in advance!
Is the average reliability really rubbish? (It says 0.0) Or do I have to do something to make it work?
Buildnumber is 150409 on steam.
Thanks in advance!