I have tried to test sep-31 sending using polaris (v1.0.2) in kubernetes cluster.
When I used demo-wallet and sep-31 send, transaction.asset.distribution_account is not defined and got an error in process_post_response function of sep31/transaction.py file.
when I used hard-coded transaction.asset.distribution_account value, transaction was created and send in stellar network worked.
But status in transaction did not change from pending_sender to pending_receiver and stacked this pending_sender. When analyzed network in browser's developer tool, in transaction object, stellar_account_id and stellar_transaction_id are still null.
How can I proceed to pending_receiver state and finish sep-31 send?