Illustrator changes the writing's and omits some shapes when exporting to pdf
I've just finished working on an alternative version of a board-game I possess; since it's now ready for printing, I export to PDF but when I do so, the software keeps changing the colour of a specific set of writings and it also keeps omitting some specific coloured rectangles.
This screenshot comes from inside the software:

This screenshot comes from the export:

See also how after eporting the writings have been set to pure black instead of that greyish pantone I picked from the graphic under it.
Illustrator keeps leaving out at least 3 of my coloured rectangles when exporting and all my "vertical writings" are set to Black even though in the document the pantone is different.
The document is already set to CMYK and I already tried changing some of the exporting settings but nothing changed.
I looked for a similar issue inside this forum but I found no answer that helped me solve mine.
I use Windows 11, if that helps.
