I'm not sure what package might be the cause, maybe the recent plymouth upgrade and systemd-ask-password-plymouth.service? 

After updating to Tumbleweed snapshot 20200414 i can't get all the way to the login screen.

The cryptsetup/luks password prompt for a data drive (internal sata3
hdd with ext4) i have auto-mounting via fstab and crypttab is not being shown. I
tried booting the previous kernel with the same result. The outpout in runlevel 3 while booting showed "starting cryptography for $drive" but it just sat there shortly thereafter (there might have been a line or two of unrelated log output) until i got sick of waiting (many, many minutes).

Finally, using a previous snapshot (from 4-14-2020, i think?) allowed me
to enter my luks password for the data drive and finish booting. 

I'm still using this snapshot as i try to figure out how to mount the root partition/subvolume from this snapshot so i can modify fstab/cryptab so i can finish booting despite this aux drive not being decrypted. I'm new to openSUSE, btrfs, snapper. I'm coming from arch and ext4 and mounting and chroot were much simpler. :) Point being, i don't know how much help i'm going to be with this bug.

thanks