'Repeats and jumps' do not work as intended when opening gp files

The 'jumps' I do not believe work at all. In the example file as far as I understand the 'D.C. al Coda' jump (which is not visibly imported to MuseScore) is supposed to take the playback back at the beginning of the file, as it does in GP7, but I can't reproduce the same behaviour even in the Musescore itself.

There is also a 'repeat two bars' function in GP7 which is seemingly absent from MuseScore, however it is parsed as a repeat of a bar TWICE instead. So instead of repeating (A,B) it repeats (B),(B).

signs.gp