You have told it to Combine Each msg.svalue1, but the messages do not have a property svalue1, they do have a property payload.svalue1. Change the Combine each to msg.payload.svalue1, then look at the svalue1 property of the payload in the output debug.
By adding a Change node you can make the output simpler, it may seem like a waste of resources but maybe makes it easier to follow what it going on. This can be particularly useful when you re-visit a flow six months later and haven't the foggiest idea how it is supposed to work.
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