Can't get Alfred to recognize certain directories

[geogaddi]

In an effort to make a some custom directory searches via the "file filter from keyword" template, I'm realizing there's some directories I just can't get Alfred to recognize at all.  One of these directories is on an external drive, one of them is a dotfile (.weechat).  I have both of them in my Search Scope, have every option checked in Spotlight prefpane, and have tried Clear Application Cache and Rebuild macOS Metadata.  What's the next step?  I can't find a similar problem on the forums where it took more than that.

 

It may be relevant info that Alfred is capable of finding some files on the external drive in question.

[geogaddi]

For what it's worth, this problem was resolved by reformatting my drive to Mac OS Extended (Journaled), since the drive was in ExFat.  I'm gonna take from this that ExFat isn't Alfred friendly.