[EDIT] The issue appears to have been fixed in version 25.1.0.056, but I can only confirm that RG Universe and FilmConvert Nitrate are now working - I don't have Dehancer Pro or CineMatch.
Cheers.
Title says it all.
In version 25.1.0.05 when I add a Red Giant Universe or FilmConvert Nitrate effect, the Program Monitor panel blacks out.
If I toggle the effect off in the Effect Controls panel or click the Global FX Mute button in the Program Monitor panel, vision is restored.
Resetting the preferences, plugin cache and removing the media cache while launching Premiere did not fix the problem.
I now have to open my beta projects in the "stable" release and endure the "Some color management features not supported" dialog every time I open them, even after I save them in the older version.