the bars 'freeze' stuck in place? that's really weird...

can you please try and enable the 'Animated Grid' (backgorund grid). Does that also 'pause/freeze' when the visualizers freeze?

Basically what I'm asking is : Does the whole wallpaper freeze? or only the audio responsive parts?

As far as I can tell it was the whole wallpaper. After like 6-7 reboots and messing with stuff that doesn't seem related though(Unity game engine for an unrelated project) it is suddenly working so.... Great wallpaper, I guess? Thanks. It looks like it's fine now. Really weird though. Not sure what actually had it acting up before.... It's really cool when it works though ¯\_(ツ)_/¯

If it's the whole wallpaper, most probably it's because of the playback settings in wallpaper engine (see image below)

https://sharex.ennevanziel.nl/image/ui32_2019-06-08_08-09-20.png

You can have Wallpaper Engine pause the wallpaper based on certain events (like maximized/fullscreen applications etc.)

Could it be that one of those events triggered the 'pause' of the wallpaper?

( In this case, most likely you have more than one screen, and have a fullscreen app on the other screen, which could pause both screens )