Did this happend to anyone else?
Is that a limitation of the destination filesystem?
There’s an Arabic name in the bottom right. Likely the software getting confused.
Can you check in a terminal? If you can see them in the terminal and not in the desktop you’re missing a font. If you can’t see them in the terminal then you’ve somehow mangled them. What was the OS and filesystems you copied from?
Maybe the target filesystem doesn’t support those filenames. I think I saw that either with NTFS or SAMBA. Really annoying.
Are the missing ones Arabic, too? If so, there is a “noto sans Arabic” font and other symbol fonts that you’ll need to have installed. That’s really weird, though. I have Arabic everywhere and I don’t have this issue. Did you uninstall any fonts by any chance?
Yes, those are Arabic, but Chinese, Japanese and Bangla are also affected. And I have the fonts installed.
