I am having an issue in RH436 Lab. When I run the "lab hacluster setup", it show me that "Unable to download grading function, Contact lab instructor".
Are all the machines of the lab up and ready?
In doubts you can always do a reset (knowing it will delete everything on these machines).
After that, if it still does not work, your best bet is you contact the support.
I did that course a few months ago, I did not encountered such issues.
I too have the same issue here with RH436 LAB, I've travelled hundreds of kilometres to a different where RedHat exam station is available and I wanted to practice before appearing exam but LAB issue is not fixed from more than 5 days and Red Hat Support is not even responding for support case though I have opened it with Severity # 1.
Because of this, I had to cancel all my prescheduled tasks, which cost me too much.
I am totally upset and feeling like not to buy RHLS ever again.