Dear Sir or Madam
After importing new publications in pdf file format into colwiz I started editing the article information by entering the DOI and searching for the rest of the information. That worked nicely for the first few, but no clicking the search button does not work anylonger. It still recognised wrong DOIs but just does not react to correct ones. It is independent on the journal, the age of the publication or anything else, Pubmed references still work etc.
What could have caused this?