challenge owner cannot delete challenge tasks when editing a challenge

[rilygreat]

Device: Xiaomi Mi 9T Android Version: 29 AppVersion: Version 4.3.7 (7581) User ID: d84d7495-5966-4d30-8435-d07acbdcf42a Level: 3 Class: warrior Is in Inn: false Uses Costume: false Custom Day Start: 0 Timezone Offset: -120 Details:

Hello, I created a challenge and added some habits. I then realised that they were supposed to be dailies so I now created dailies in the same challenge and I am trying to delete the habits but they keep staying there.

steps to reproduce:

1. create challenge and add some tasks
2. edit the challenge
3. try to delete a task
4. task stays in both the edit screen and challenge task page

after a few attempts at deleting, one of two tasks disappeared. i then tried to delete the other one again and it told me that the task wasn't found, but it's still appearing on the task list. pulling down to refresh, reloading content, and fully closing then reopening the app didn't help.

going to the web version to delete the task there gave me the same "task not found" message, but it went away on the challenge task board right after. it still remains on the challenge task board on the app.