my issue: Evernote doesn't save the note when i tick/untick a checklist
the solution: i have to open the note using the compose (pen) button and then when i tick/untick the checklist, it will save.
in a nutshell, in order save changes made to a checklist, i have to enter the editing mode (and perform the tick/unitck from here), otherwise i get the message "failed to save note".