Hi Bradley,
There are typically two causes for this:
1. you are on MacOS and are using the new Experimental Metal renderer, which the plugin is not compatible with. or
2. The install did not work properly, and you're missing the data files required for the plugin.
If you can get me a log file, I can help figure out what is going on. To do so, run OBS, toggle on/off the filter (to log any issues it might have when being enabled), then go to `Help --> Log Files --> Upload Current Log File`. Next copy the URL it gives you and either past it here, or DM it to me, and I will take a look.