Why on Mojave I don't see folder sizes in any drive, both the SSD internal and the externals?

Using the lates Mojave, after copying files from an external drive with Carbon Copy Cloner. using the option not to delete anything in the target drive (also external) I don't see the sizes of the various folders I copied?

I try to relaunch the finder in vain, after waiting for the process to complete.

I use the get info option on the folder but it doesn't show any sizes, nor "calculating size".

Is there a utility, anyone can suggest to get this information?

Unfortunately FileBuddy no longer works ....

Thanks