Hi Lili. Thank you for the feedback and sorry you experienced this with the timer.

I have narrowed down the cause to a routine operation that normally makes sure there are no delays. This has been fixed as of version 0.5.0, and automated tests are now in place so that this does not occur in a future release either. I would like to invite you to try Productive Cycles again, and hopefully you can have a better experience this time.

Also, please feel free to reach out to the contact information listed in the add-on page with any other comments, concerns or suggestions.