Stroked path issues G4

1
Strange corner issue when making the angle blunter
image

2
visible difference in stroke width depending on point positioning

3
Artefacts

4
The middle bottom rounding is rendered and expanded differently than the left and right one

5
Export (expand) sets start points rather inefficiently, they should be after a straight segment if possible

6
when duplicating an glyph with a PUA code, the Unicode is also duplicated, I think it should be stripped. The duplicate Unicode causes side effects, not being able to open a glyph, or open several glyphs in a tab, not being able to go to previous glyph.

Can you send me a file that shows this?

sent

#6 was a confusing description, duplicate Unicodes occur when copying/pasting glyphs (legacy habit) and clicking the add copy button.