I‘m sorry to say … but yes, you did: On iOS and iPadOS StitchBuddy HD is autosaving changes, and due to its criticality a corresponding warning is shown when opening a design. Currently, this warning is shown only once, but maybe I need to change it, requiring a user interaction to be disabled…
I‘m not a fan of autosaving, and on macOS it could have been avoided in the app design. Unfortunately, that‘s very difficult (if not almost impossible) on iOS, where apps might be closed automatically by the system when running in background…