I'm trying to creat a "favorite authors" collection using the collections tool. My problem is that whenever I add a second author to the collections rule the resources below included for the first author dissapear and suddenly no resources are included in the collection.
I'm using the rule as follows "author:(john calvin) OR author:(martin luther) OR etc...." I have also tried AND instead of OR and get the same results.
For some reason this is not working. Am I doing something wrong?