Did you happen to look at the relevance to try to see what the problem could be? Since the analysis on bigfix.me is usually created at a specific site, it does not always take into account specific settings/configurations in all environments.
Also there are quite a few properties that that analysis returns, is there any specific one that you have that is not working? Are there ones that do work for most systems?
Did you use the Fixlet Debugger to try to work through the relevance?