subtasks can't be shown or edited in Chrome or FireFox
Create subtasks and the number subtasks displays correctly in the Subtasks tab. But click on the Subtasks tab, the tab highlights for the tasks aren't listed so they can't be edited.

App:
Web app
Hi,
Thank you for bringing this to our attention.
May we ask for you to try clearing the cache or refreshing the page?
I checked my end and it's working so far.
We will wait for your feedback.