All patches to MobileFrontend were blocked by an issue with CI - several browser tests which attempt to login to the mobile site failed either freezing on the login screen or not updating after a login. This indicated a problem with the login workflow. As a result we disabled these tests but now we need to restore them.
The problem is impacting both Minerva and MobileFrontend.
Here's an example of a failure:
https://integration.wikimedia.org/ci/job/mwselenium-quibble-docker/10791/consoleFull