Figma support team sent those “fixing steps” to me as well, but they didn’t work at all.
" In the files where those issue is occurring, can you try the following steps:
Select all layers
Launch quick commands (cmd /)
Search for and apply the option “Repair selected instances"
Now we are in the process of manually recreating our entire library and all the screens… which will take weeks.
…and in the meantime, other components continue to break (randomly).