@smbd you have identified two issues here.
The first is another bug in globaleaks functionality that will have to be released. This release cycle is like Samsara, the wheel of life. However, with these specific routing issues we may be able to escape them by improving our test coverage. This afternoon I am working to close https://github.com/globaleaks/GlobaLeaks/issues/1982 and on Thursday we will either put out v2.67.10 or v2.68.0.
The second dialogue you are seeing is an issue the Tor browser shipped in v7.0.0. The connection to the platform is encrypted however the version of Firefox which was used as the base for the latest Tor Browser. They have a ticket and are working on a fix here: https://trac.torproject.org/projects/tor/ticket/21321