I have the latest versions of the OnOne plugins. I uninstalled OnOne and downloaded from the OnOne website and reinstalled them today and I still have the same problem.
Onone plugins are develop presets.
In order to you these presets, you need to add it to the Presets in the develop module.
Please share name of the preset you are using or the link from where you have downloaded it.
Also refer : Lightroom plug-ins and free presets
Hope this helps.