For 1.48, metadata on device not updated after upload?

Still on 1.48 due to xp: after transferring books (azw3) to voyage, the kindle does not show the changes. The job log does show:
'Upload books to device' and then 'Send metadata to device'.

Only when I manually run 'Update Cached Metadata on Device' does the kindle finally show the changes. Is this a bug with 1.48?