This is when i press the "new" email button https://i.imgur.com/LA9QJu3.png
But this is if i use the "edit as new" functionality https://i.imgur.com/SuhPX7d.png
If i scroll down and up in the "Identity" combo it fixes itself.
I confirm this bug.
I will investigate it.
Git commit 99c484d2992760405110c6fc014231b1da29212f by Laurent Montel.
Committed on 30/04/2021 at 06:57.
Pushed by mlaurent into branch 'release/21.04'.
Fix Bug 436375 - "Editing as new" selects the wrong transport
M +3 -0 src/editor/kmcomposerwin.cpp