the composite glyphs are presented inappropriately after opening the TTF file, but when applying it to words (after installation), it work well. No strange things are found.
The inappropriately presentation is like
and the correct composite glyphs and one of its simple glyphs I tried to modify are left figure and right glyph correspondingly.
the problem comes, after I do some modification, such as remove the redundant point or merge the two contour sections, the saved and applied result (after installation) becomes:
Could someone know what process do i miss or go wrong??
best reguards.