Status change on assignment doesn't work

Hello,

i'm trying to set state when activity is assign.
I change global parameter "Status change on assignment" to YES.

I use following status :
 

I want to assign activty in "accepté" status :
 

But, when using "Assign to me" (the same if i choose resource from combobox and save activity), i get no change on status :
 

Thanks for advice.

regards,
 

Hello,
With parameter "auto assign responsible to activity", it works :
- setting responsable lead to make an assignment for responsable
- auto setting of assignment lead to set status to "assigned".

Thanks !

Strange, in test for another activity and auto assignment doesn't work anymore...

First, activity is set to "Accepté" according to the workflow.
 

Second, i set responsable :
 

Note that there is no assignment, even with global parameter "auto assign responsible to activity" set to "yes" :
 

And i can reproduce good behaviour only with new activity (not with one where assignment where deleted).

I find the issue : for planning mode "fixed duration", there is no auto assignment, so status can't change !

Is it possible that, for fixed duration, status can be change even if there is no assignment ? I understand that there is no assignment because there is no work element for fixed duration and manual advancement set, but it leads to no intuitive behaviour for users.

Regards,