Couldn't parse the configuration for the block | Postman flows

My question:
I want to create a basic flow which includes a login request, creating a durable for access token, passing the token to second request which is a GET request to get a list. I am always observing error “Couldn’t parse the configuration for the block”

Details (like screenshots):

How I found the problem:slight_smile:
I observed the problem while creating a basic flow

I’ve already tried:
I have already tried to variables, changing environments, different requests, updating/restarting postman etc