Probably Bug, the behavior of the button next week?
If I add short before the month end a new todo and clicking an the button "next week". Todoist will choose the last day of the month and not the same week day in the next week, because the month changed between.
The same behavior when I edit a already populated item.
You can reproduce it as follows:
Enter a item right now on 25th june, choose button "next week", todoist will schedule it on Monday 30th and not an Thursday 3rd July.
The button works correct, when the date is in the same month.
I hope that is understandable ;-D
btw, it is in the Outlook plug-in and Android App the same...