I have have contacted upstream and it seems that debian is not upto date with the latest version.
Wolfram Sang said that ... "the new 1.0.33 version which is already in code-freeze state. Or the current version needs to include this patch from upstream: https://gitlab.com/sane-project/backends/-/commit/580c278dcafe4159213406b4307ee8598fe08f e7 " This is on the sane-devel list: sane-de...@alioth-lists.debian.net ael