Resolved Cinemachine broken after attempting to install Animation Rigging package?

Hi, I attempted to add the Animation Rigging package, but doing so seems to have broken Cinemachine? I now get many errors complaining that 'IntPoint' and 'ClipperOffset" are inaccessible. The package is version 2.8.6, and the error occurs on any project when Cinemachine is added. This was not happening before bringing in the Animation Rigging package. I am incredibly lost as to what's happening here and am unable to work on my project, so any help would be greatly appreciated!

 

Fixed it - I went into my AppData/Local and deleted the package for it. Went back to the project and re-added it, and it worked.