If for some reason the OpenFX plugin stopped working or displays the below error message in the OpenFX inspector:
No parameter is exposed to user or OFX Plugin is NOT available.
Please try to clear the OpenFX cache by doing the following:
macOS
1.
Close DaVinci Resolve
2.
Open OpenFX plugin cache file location
Open a Finder window
Select Go > Go to Folder...
Type or paste in:
~/Library/Application Support/Blackmagic Design/DaVinci Resolve/
3.
Delete the OFXPluginCache.xml file at this location
4.
Relaunch Resolve
Windows
1.
Close DaVinci Resolve
2.
Open OpenFX plugin cache file location
Open a File Explorer window
Go to
C:\ProgramData\Blackmagic Design\Davinci Resolve\Support\
3.
Delete the OFXPluginCache.xml file at this location
4.
Relaunch Resolve
Re-enabling the OpenFX Plugin in DaVinci Resolve
When the OFX plugin causes a problem or crashes DaVinci Resolve it gets blacklisted and Resolve won't appempt to load it anymore. Even if you re-install a plugin or install a different version of the plugin.
In order to load the plugin again we need to tell Resolve to do so. Go to Preferences and Video Plugins section:
Re-enable OpenFX Plugins
Tick the checkbox next to the plugin, click Save and restart DaVinci Resolve. The plugin will be loaded on startup.