If you experience a problem loading or crashing the Mocha Pro OFX Plugin in any OFX host, you may need to clear that host’s OFX plugin cache.

Foundry Nuke

If Nuke projects containing Mocha Pro are not working when you upgrade or install Mocha Pro, please clear the Nuke plugin cache.

Instructions from Foundry are here: https://support.foundry.com/hc/en-us/articles/206989899-Q100043-How-to-clear-your-Nuke-NukeX-NukeStudio-cache

FXHome HitFilm

Clearing the plugin cache via the HitFilm settings may not work and you need to do it manually. Instructions for clearing the cache to resolve plugin issues are found on FXHome’s site here: https://fxhome.com/faqs/view/85