While editing tickets in TopLeft, you may have made changes but accidentally closed the editor before saving, thus losing your edits.

Now TopLeft prompts you if you close the editor with unsaved changes.

By the way, this doesn't apply to the time and notes tab. Because it can be useful to write part of a note, then edit other tickets, and then return to finish and submit the note, TopLeft automatically saves your unfinished notes. It doesn't prompt when leaving with a partially finished note or time entry.