Phileosophos

Forgive me if this is covered somewhere in FAQs or this forum, but I couldn't find it. I've been having weird file-searching issues in Alfred of late. And I say 'weird' because I can search for files with very similar names that are in the same folder, and it will find some but not others. One of them that can't be found gives me the following file search troubleshooting output: Can somebody tell me maybe how to fix this? I don't even know to what "MDQuery" refers or why it's important. Thanks.

Bummer. I'd suggest that as an obvious feature request.

I'm a long-time Alfred user, but to date I've only scratched the surface. I've started trying to create a workflow to achieve my goal, which is to process PDF files when they're added to a folder or modified therein. I thought that would be very simple, but unless I'm missing something it appears there is no notion of a trigger that initiates a workflow for new files/folders. Is that right? If I'm wrong, could somebody point me in the right direction? Thanks in advance!