Yes, thanks for the info, @IanT.
According to your screenshot, your task has invalid start date. Currently start date on recurring tasks doesn't work properly. (This was a bug before iOS 13 but it got worse on iOS 13.) But your task seems to have start date later than due date (according to -7 hour duration shown). I'm not quite sure what may have caused it since you're not using start date in the settings.
Please try changing start date by going into 'Settings - General - Use start date' and edit start date to match due date or make it earlier than due date.
If you know how this task got this way, tell me back. Also if you have other tasks that crash, give me a screenshot like this too. And also please share how above procedure went.
Thanks!