Bookworm Pup64: password rejection with LUKS encrypted savefile

[radky2]

kris777 reports password rejection when booting BW64 with LUKS encryption:

https://forum.puppylinux.com/viewtopic.php?p=92829#p92829

I have tested and observed the same password rejection when booting with a 512K LUKS encrypted savefile in fresh frugal installs of BW64-RC and vanilladpup-10.0.16 (Pupmode 13, flash media).

Password rejection is also observed with LUKS encryption when booting BW64 with the original /usr/sbin/cryptsetup replaced by the static initrd cryptsetup.

When viewed from a different (non-encrypted) install of BW64, the above BW64 LUKS encrypted savefile is mounted and viewed without difficulty in RoxFiler (password accepted).