Can you please try to add the following line after the first line of /usr/share/initramfs-tools/hooks/cryptroot?
# -- snip -- set -x # -- snip --
And attach the output of "update-initramfs -u".
Can you please try to add the following line after the first line of /usr/share/ initramfs- tools/hooks/ cryptroot?
# -- snip --
set -x
# -- snip --
And attach the output of "update-initramfs -u".