Subscribe by Email create duplicate log files with sending.

Please refer to my previous discussion that I managed to resolve.
https://premium.wpmudev.org/forums/topic/subscribe-by-email-plugin-cron-job#post-954169

Now it seems to create duplicate logfiles, see image attach. There is only one newsletter set to go out once a week. The first logfile that is marked as "finished" correspond to the number o subscribers I have.

So it seems like this plugin is now creating duplicate newsletter.

Any suggestions?