I clicked from "salafism" with frequency 19 in a wordlist for attribute: lemma in UKWaC-new and got a concordance with only one hit. I had only got the single occurrence of lowercase salafism, as the other 18 were uppercase Salafism. It looks like the concordance is not being correctly specified.
I had another related complication when searching for 'sabatier' in the concordance query box in UKWaC-new. I only got the NN instances lemmatised as (lowercase) 'sabatier' whereas I should also have got the NP cases lemmatised as 'Sabatier'. (Query box search should be case-independent search for the search term as a word or as a lemma - case-independent for both)
I think thtese problems are specific to UKWaC (and maybe to UKWaC-new). Can you please tlel me (adam) where the issue lies, as I didn't think these things were corpus-specific. Thanks.