All FxFactory plugins output a black frame under Premiere Pro 25.1 Beta Build 50 [FIXED]

This regression has been fixed in Premiere Pro 25.1 Build 56.

Under the very latest Premiere Pro 25.1 build (50, at the time of this writing, no idea if it may have started even earlier) all our native plug-ins are broken, and will output black video. I wanted to sound the alarm before investigating the problem any further. It is easily reproducible:

1) Install most recent version of FxFactory:

https://fxfactory.com/download/ 

2) Launch Premiere Pro 25.1 Beta

3) Apply any one of our native plugins, such as filters in the FxFactory Pro categories. Notice the output is only black frames.

It is unclear at this point if Premiere is simply feeding all black frames to our plugins to begin with.