Steps to reproduce:
1. Make the Todoist window fill the half of the screen by pressing Win+Left/Right
2. Minimize window
3. Restore window
Step 1 can also be simply "Maximize the window".
Thanks for the report, I have reproduced it and have passed it to the developers to look into it.
У меня такая же проблема.
Loving Todoist but I'm having this problem as well. Any time scale for a fix?
Unfortunately, we don't have a deadline right now, but we'll look into it in future updates.