I dug into this and it looks like this is a known issue on our end, and it’s the wildcard in the title filter that’s tripping it up. When collection_id and wildcard filters like title:Konic* are used together, the query can’t be resolved and comes back empty. Each filter works fine on its own. Here’s a previous thread about this for reference:
I’m going to make sure that your feedback about this is heard as well as the thread is from roughly a year ago. I still don’t have a timeline to share here, but I’m going to dig into this and see if I can surface any additional info.