Olm sessions imported from legacy crypto will always be used in preference to newer olm sessions

[richvdh]

Background: If an Olm session "wedges", we will attempt to work around it by starting a new session. Later, when either side wants to send another olm message, it will use the most recent Olm session -- ie, the new session.

However: when sessions are imported from legacy crypto, their "creation_time" and "last_used_time" are both set 50000 years in the future. (They are set in milliseconds rather than seconds. See also matrix-org/matrix-rust-sdk#2974, matrix-org/matrix-rust-sdk#2973.) That means that the imported session will always be used in preference to any newer sessions.

[richvdh]

element-ios has the same bug: element-hq/element-ios#7727 no it doesn't