Good news, I think I found the problem.I don't known ... i've tried everything but the problem persist.
I think i'll made the release with the problem inside and i hope the community can found a solution.
Thank you AC
It took me a while to figure it out, but basically the file is corrupted. The first line in particular doesn't really have U58 so the ministers are not saved in the savegame. I found this by opening the file with OpenOffice (don't save with it or Excel if you don't know how to handle them) which showed some weird characters right before U58. Unfortunately Notepad++ failed to display this issue.
The quick solution for me was copy-pasting the first line from U57 ministers into the U58 minister file and then obviously changing U57 in U58 in the first line. After that I was able to start a game, save and then on reload the ministers of U58 were still there.
Also, the ministers_U58.csv file is missing an empty line at the end of the file, this would prevent the last ministers from being loaded.