When I save my project in ableton live 11.2.11 and then re-open, any change in the filter envelope decay setting is not recalled and reverted back to the/an older value. This occured at least in 1.40 and 1.43, not sure of any previous versions.
This issue also occurs when I copy-paste the device to a new track: the filter env decay setting is not kept.
The issue does NOT occur when I duplicate the entire track in ableton.