Reworked Image Slideshow Asynchronus feature does not work

Operating System Info

macOS 12

Other OS

No response

OBS Studio Version

30.1.2

OBS Studio Version (Other)

No response

OBS Studio Log URL

https://obsproject.com/logs/7phqW8Znzvt2TYHW

OBS Studio Crash Log URL

No response

Expected Behavior

I expected that any new Image Slideshow sources that I created after upgrading to 30.1.2 would automatically scan the folder and adjust the playlist according to the images in the folder.

Current Behavior

The new Image Slideshow source which is supposed to be asynchronus in 30.1.2 kept the same number of images as originally loaded in the folder, but replaced the output of images I removed from the folder with black placeholders. After quitting the software and re-launching the source, the slideshow re-populated the playlist with the current number of images in the folder.

Steps to Reproduce

1. Create new Image Slideshow after updating to 30.1.2
2. While slideshow is active, remove files from the folder where the Image Slideshow is sourcing the media content
3. Instead of reducing the number of images in the slideshow, the missing files are displayed as black placeholders.
   ...

Anything else we should know?

No response

Start by reproducing the issue with an Image Slideshow source on macOS 12 and review the linked OBS Studio log. Remove files while the slideshow is active, then verify that the playlist reflects the folder contents without restarting and does not show black placeholders.