Does anyone know which "component" or whatever it is of Windows 10 related to informing running programs about updates to folders they have open, that might break?

Background: I'm genning images, and I normally browse them with Honeyview, a popular (though sadly now defunct) windows. I can scroll to next/previous image with the mousewheel, and up till now, when a new image has finished rendering, i can stroll right to it from the previous last image in the folder with no problem. But now something "broke" and it's not getting updates. It won't display the new latest image in the folder until I close the program and reopen it (or browse to a different folder and then come back). It's a little thing but man is it annoying. Is there some service I can try turn off and on to fix this?