Unfortunately that hasn't fixed the issue for me using v4vapp with keychain.

The steps I've taken since last msg are:
Changed to using v4v.app instead of lnd.v4v.app, plus I cleared all my caches before trying with v4v.app.

Tried using brave again with v4v.app... clearing caches and taking shields down etc

I tried downloading the app, and same error unfortunately @brianoflondon :(
I even tried removing the keychain extension from my browser and re-downloading it and firing up a new instance of keychain.
In all instances it returned the same error.