I get this message whenever I'm trying to open it after downloading it, and as well as "unidentified developer" message. I've re-downloaded a couple times, plus downgrading my AE update to see if that helped. It's in the plug-ins folder as 'PixDither.plugin'.
I purchased this and it's giving me After Effects error: Can't import file "PixDither.plugin" unnsupported filetype or extension ( 0 :: 1 ) when I try to open it in After Effects, I'm running on AE 24.0.0 and MacOS Sonoma 14.5. I've placed the plugin in the plugin folder.