One hinting for several masters

I have ready-made fonts and now I want to hint 1 master and transfer it to others. (Different number of nodes in ttf - #8 by GeorgSeifert)

I add 8 masters to 1 .glyphs file, then hint compatible glyph, but after exporting all instances to ttf hinting applied only in 1 master where I made hinting.

I specially changed the shape for copyright, but it worked only in Thin (1 master), other didn’t changed