Achievements on XsX and Trophies on PS5 are not synchronized

I started Diablo IV on XsX during the early access and completed the campaign on XsX. After that i got Diablo IV also on PS5 but when i launched it, all the achievements i got on XsX didn’t unlock on PS5, like if it was a new game i never played. I’m very surprised, even Destiny 2 and Battlefield 2042 are doing it well and when i got an achievement or a trophy on a specific platform i got it also on the other ones when i launched the games. There must be an issue with the cross-save/progression system of Diablo IV.