Mystery error

[menagerie198]

I do not have any lapse in performance (that I have noticed) but, I keep getting this error in the Developer Console:

Uncaught (in promise) TypeError: Cannot read properties of undefined (reading '/')
at getEl (plugin:folder-notes:2515:55)
at removeCSSClassFromEL (plugin:folder-notes:2500:28)
at eval (plugin:folder-notes:2431:7)
at Array.forEach ()
at loadFileClasses (plugin:folder-notes:2425:40)
at eval (plugin:folder-notes:5746:9)
at t. (app.js:1:2155014)
at app.js:1:237228
at Object.next (app.js:1:237333)
at a (app.js:1:236051)

Just thought i might be useful to FYI it...

[LostPaul]

When do you get this kind of error? I got it once but I don't get it anymore.

[menagerie198]

I never noticed an event causing it, but it was always there when i went to the developer window. I just closed and restarted Obsidian, and this is the result...

[frankreporting]

I'm getting same error on startup. Potential clue: Not all of my folder notes are getting the bold treatment in File Explorer. Some are bold, and some aren't. I can still click on the non-bold folder names to load the folder note itself. It just seems not to be rendering them all correctly in File Explorer. Possibly related to the error?