DSC alarm set and cleared without operator ack - the variable should be not alarmed and not acked

We are deeply involved in porting our application from 7.1.1 to 8.6.1 under Windows XP.
Our application heavily depends on DSC and moving from 7.1.1 to 8.6.1 is actually much more than a simple porting....
here is our last problem:
it seems that there is no discrimination between 'active' alarms and 'acknowledged' alarms on a shared Variable in case the 'ack Type' is set to 'USER'.
Here is what happens:
1) a Boolean shared variable is defined to be alarmed when 'high' (TRUE) and its ack type is set to 'USER' (the operator at our application must ack alarms).
2) the Boolean var is set to TRUE -> it is declared alarmed (OK)  and not ack'ed (OK)
3) the operator ack the variable -> it is declared alarmed (OK)  and ack'ed (OK)
4) the Boolean var is set to FALSE -> it is declared not alarmed (OK)  and ack'ed (OK)
5) the Boolean var is set to TRUE -> it is declared alarmed (OK)  and not ack'ed (OK)
6) the Boolean var is set to FALSE -> it is declared alarmed (NOT OK!!!)  and not ack'ed (OK)
7) the operator ack the variable -> it is declared not alarmed (OK)  and ack'ed (OK)
This last case is the wrong situation: an alarm has been set and cleared without operator ack the variable should be not alarmed and not acked
Actually the variable returns OK only when ack'ed.
see the attached project in which a small vi and a small shared variable lvlib allows to repeat the above steps.
Note:
A) same situation applies to 'double' shared variable
B) under DSC version 7.1.1 everithing was OK
can anyone Help?
Thank You Guglielmo Rozera
Attachments:
AlmAckTest.zip ‏18 KB

Thank for your replay!
I have tried to undeploy and deploy the library with ack type set to 'User' by default, and then run the vi but the behavior is always the same.
The modification you suggest does not set 'User' ack type because data socket needs '2' as 'User ' setting while property node needs '1' or (better) its own enumerated type.
Anyway I've corrected the vi according to your suggestion and tried again but nothing changed...
Here I attach the project modified with property node and an indicator to show what is the actual ack type
I hope in your further investigations!
Thank You
Guglielmo
Attachments:
AlmAckTest_2.zip ‏20 KB

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DSC alarm set and cleared without operator ack - the variable should be not alarmed and not acked

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