Exact same issue, lost buttons, when I go back to the builder to re-save, the data/parameters of the element are missing.
In fact the data of any element is missing if I edit an element even a newly created element. but the front end shows the data fine.
Also I’ve noticed dragging and dropping is quite messy now with some 1/6 elements not allowing themselves to be placed in a row.
Anyway will start a new one for this.
