When I fetch the tag cloud, I get a bunch of tags and the TagCloudItems indicate that there are a number of items in each tag. In my tags page which is supposed to list the tagged items for a certain tag, I get no results at all.
Could be caching. Because I struggled with Relate attributes also - adding attribute from the code and then immediately retrieving that value. Cache was the issue of the exception. Havn't dig into your case..
string something = "Episerver";