Bug in delegation revoke button

When using chrome and hive-keychain, I'm currently unable to revoke delegations using the revoke button on https://wallet.hive.blog/@ausbitbank/delegations

I get no visual response in the site, or hive-keychain after clicking the button, and the following appears in the browser console:

Uncaught TypeError: Cannot read property 'get' of undefined
    at onClick (app.0522ac8719efba3d884d.js?undefined:180505)
    at Object.o (app.0522ac8719efba3d884d.js?undefined:40065)
    at s (app.0522ac8719efba3d884d.js?undefined:40065)
    at Object.executeDispatchesInOrder (app.0522ac8719efba3d884d.js?undefined:40065)
    at f (app.0522ac8719efba3d884d.js?undefined:23949)
    at h (app.0522ac8719efba3d884d.js?undefined:23949)
    at Array.forEach (<anonymous>)
    at e.exports (app.0522ac8719efba3d884d.js?undefined:49112)
    at Object.processEventQueue (app.0522ac8719efba3d884d.js?undefined:23949)
    at app.0522ac8719efba3d884d.js?undefined:74801
    at Object.handleTopLevel [as _handleTopLevel] (app.0522ac8719efba3d884d.js?undefined:74801)
    at h (app.0522ac8719efba3d884d.js?undefined:74801)
    at c.perform (app.0522ac8719efba3d884d.js?undefined:23949)
    at Object.batchedUpdates (app.0522ac8719efba3d884d.js?undefined:49112)
    at Object.batchedUpdates (app.0522ac8719efba3d884d.js?undefined:18388)
    at dispatchEvent (app.0522ac8719efba3d884d.js?undefined:74801)
onClick @ app.0522ac8719efba3d884d.js?undefined:180505
o @ app.0522ac8719efba3d884d.js?undefined:40065
s @ app.0522ac8719efba3d884d.js?undefined:40065
executeDispatchesInOrder @ app.0522ac8719efba3d884d.js?undefined:40065
f @ app.0522ac8719efba3d884d.js?undefined:23949
h @ app.0522ac8719efba3d884d.js?undefined:23949
e.exports @ app.0522ac8719efba3d884d.js?undefined:49112
processEventQueue @ app.0522ac8719efba3d884d.js?undefined:23949
(anonymous) @ app.0522ac8719efba3d884d.js?undefined:74801
handleTopLevel @ app.0522ac8719efba3d884d.js?undefined:74801
h @ app.0522ac8719efba3d884d.js?undefined:74801
perform @ app.0522ac8719efba3d884d.js?undefined:23949
batchedUpdates @ app.0522ac8719efba3d884d.js?undefined:49112
batchedUpdates @ app.0522ac8719efba3d884d.js?undefined:18388
dispatchEvent @ app.0522ac8719efba3d884d.js?undefined:74801

Looking through the network requests tab I don't see any failing api calls that would potentially explain this.