I recently edited a form used to add multiple lines to a detail block, and saved it to a .sma file as usual.
The form looked fine, but running the form with the main project gives Error (21) Object not found,
and it is related to
clrBtnFace =@ colors.getsyscolor(COLOR_BTNFACE)
at least. If I go back and turn off the use system colors check box and save the form and save as .sma, the form works fine in the project.
This seems to be a relatively new problem.