Description

People seem to be seeing/getting outdated device lists from Synapse regardless of server. This is manifesting in the fairly normal ways: wrong names, devices that should have been deleted, etc. New devices seem to be included correctly all the time, but usually with a mix of incorrect devices.

insert into device_lists_remote_resync (user_id, added_ts) values ('@victim:example.org', (extract(epoch from now())::bigint * 1000)); fixes the problem for the relevant victims.

Appears to be a wider issue than just matrix.org

Known cases:

• Someone deleted their extra devices, but no one saw that.
• Someone cross-signed their new device, but no one believed them.
• Someone renamed their device, but no one saw that.

The rename trick for trying to confuse/convince the server into updating doesn't appear to work anymore either - only the database insert functions.

Started appearing months ago.