How to send Adaptive card Submit form data from child dialog/topic to parent dialog/topic in PVA Bots

[vekacham]

I have trouble getting Adaptive card submit form data as output variables in PVA bot. The requirement is to get user input through Adaptive Card and use that data in next steps in the PVA BOT

1. PVA Bot where the child dialog called as 'TestDialog' is called using the Redirect to other Topic option:
   After doing publish in Bot Framework composer , I can see output variable (reason1) of child dialog and added it in the next step :

2. When I click on Save of the PVA Bot Topic , the output variable diappears and shown as unknown variable where it is referred:

2. TestDialog is my child dialog that I added in the Bot Framework composer: In this dialog I have one trigger and added Adaptive Card with Submit Action .

3. TestDialog output property is added:

screen shot of Adaptive card Im using :