I believe you need a new identity and authorization for each node; reusing one will confused the system and expect it to have files from the older or other nodes with the same identity and/or authorization. Perhaps @Alexey or @littleskunk can chime in to verify?
You have to create a new identity and authorize it, If you already had a old identity created “Example” if you ran with just storagenode in the command and this folder already existed you cannot use that one again,to authorize it. So if you ran the command with storagenode2 it would create a new folder for that storagenode then you would authorize that one.
Than you would authorize the new one with the storagenode2 in the command. So if you don’t do this then it will be a instant DQ if you run the same Storagenode identity twice.