possible data loss from unexpected confirmation prompt

[username-not-taken]

i don't really know what happened here. first i thought that there was a stream with the exact same name but this should not be possible since there is a timestamp too and it should keep the names unique. all i know is that there was an unexpected confirmation prompt that i didn't know about for many days. would appreciate it a lot if this could be fixed somehow by maybe using another name automatically if the file exist instead of stopping the whole thing at an prompt that requires manual input