Short answer
Someone else is typing in that field right now, such as the title or description. Wait for them to finish. The field frees itself after five minutes without typing.
What you see
If it is you, in another tab
If you have the same task open somewhere else, Humble says You are already editing this field and where. Select Edit here instead to carry on in this tab.
Questions
Is my typing lost?
No. Humble saves as you go. If a change could not be saved, it tells you: Your last changes to the title weren’t saved.
Can we edit different fields at the same time?
Yes. The lock is for one field, not the whole task.
Related
Last checked against the Humble app: 16 October 2026.