Thanks for getting back to me Meredydd.
I tend to make changes then preview those changes via the ‘run’ button and it tends to happen after I press ‘run’. The ‘run’ fails and says either a row or form is missing. It doesn’t happen every time but has happened a few times over the last few days.
The weirdest part is that the component that gets deleted also disappears from the previous version on “View History”. For example I can see a version where it says I have edited the component that disappeared but when I ‘restore’ that version or the version prior the component is still missing.