No way to actually add a vault on Google Drive from Buttercup Desktop

[kolole]

OS: Linux
Desktop @ v2.28.1
Core @ v7.7.1

Issue
If I go to Vaults>Add New>Google Drive, I'm prompted with the following,

_You may select the level of permission that Buttercup will use while accessing your Google Drive account.

Selecting an open permission setting will grant Buttercup access to all files and folders in your account and connected shares.

Selecting a non-open setting will grant Buttercup access to files that it has created/accessed previously._

But the only three buttons are Copy URL, Authenticate or Cancel. The first one puts a link to login to Google drive in the clipboard, the second one sends a request to my browser to login to Google Drive, Cancel - well, it cancels the adding of a new vault. I've already authenticated Buttercup on my Google Drive. Nothing happens after that.

Expectation
After successfully authenticating, I should be prompted with which vault file from Google Drive I want to add. This does not happen, and there's no way for me to actually do that. See the above.

[kolole]

I realize that this should've been posted in the buttercup-desktop repo. Please feel free to move it.