i'm glad you found the solution as is: when jack-transport mode is set to "Full" or "Slave", session tempo follows the current jack-transport rolling state; if you change that setting it takes immediate effect on the current instance where you've changed it but all others will take effect only when they get restarted.
i guess you just tripped on it but there's an old leftover that dates back to the time when jack-session was introduced and multiple qtractor instances were allowed, is that the jack-transport mode setting is a global application configuration option and not a per session/instance one.
among other global options that may eligible, making the jack-transport mode setting a session property has been left in a coma. i even dare to say you just tripped on its life-support wires :))
i see.
i'm glad you found the solution as is: when jack-transport mode is set to "Full" or "Slave", session tempo follows the current jack-transport rolling state; if you change that setting it takes immediate effect on the current instance where you've changed it but all others will take effect only when they get restarted.
i guess you just tripped on it but there's an old leftover that dates back to the time when jack-session was introduced and multiple qtractor instances were allowed, is that the jack-transport mode setting is a global application configuration option and not a per session/instance one.
among other global options that may eligible, making the jack-transport mode setting a session property has been left in a coma. i even dare to say you just tripped on its life-support wires :))
byee