Unable to connect to Particle Illusion: Error Code -1

Have seen multiple threads on this but none with an applicable answer.
I’m running Windows 10 with a Quadro 6000 GPU, and Continuum 12.5.
It works inside of Premiere but inside of Nuke, I get that above error code any time i try to launch Particle Illusion. Just got the software and haven’t gotten it to open successfully yet. Have tried in Nuke 10, 11, & 12. Tried uninstalling Continuum completely and re-installing and nada. Please help!

Hi, Mark,

We haven’t been able to reproduce this is with Particle Illusion in Nuke in our test lab. Can you confirm if you are on the latest 12.5.1 version of Continuum or are you still on 12.5.0?

Cheers,
Jason