I've been a loyal TickTick user for years. Over the last several months, my checklists will disappear. The main task is there, but every single check box for every single task is gone. Last time I submitted a ticket, they didn't know why it happened but suggested I upload a back up. Fine, except IT KEEPS HAPPENING. Doesn't matter what device I'm using. I've been singing your praises for years, but I can't trust an app that deletes my info repeatedly.