I don't know either. The version I had before was however several years old but as far I know I did update not too long ago, but that gave an error, same as Winrar 5.x.
So I installed the newest versions of both and Winrar worked instantly, but 7-zip gave the same error as it did before. Strangely enough.
But now it worked so I'm glad. I use 7-zip fairely rare, mostly Winrar because I can do everything with it and I'm used to it.
Now you made me curious, so I checked. Seems I did upgrade in juli 2022. First install in 2018 I found a descript.ion file from january 2018 but a lang directory from january 2022 where for example the fa.txt and uk.txt (and some others) was from juli 2022. I checked creation date of the .exe files (in fact the main directory), that was october 3rd 2022, so just a year ago.
Odd....