Top and Bottom Diacritic Not Correctly Placed

A, circumflexcomb.cap, dotbelowcomb

26%20pm

It won’t stick to the A, only each other? dotbelowcomb uses dotaccent as the component, which itself has top and _top accents…

The nested accent components are the problem. Use a common component without anchors or use the dotaccent component rotated 180 degree. The rotating tells Glyphs to switch the anchor names.