Bug: invalid dates allowed
I accidentally fat-fingered 12/29, it came out as 12/229. Todoist accepted the tasks with a due date of 7/13. It should complain about an invalid date, not silently make the date 7/13 of the following year.
Thank you for your report. I've been able to reproduce this issue and have passed it to the developers. Todoist should indeed return the "invalid date" error in this situation. We will fix this issue in future updates.