LUKS encryption not accepting the password after KDE neon update

I update my system with pkcon update. And then I rebooted.
After rebooting it wont accept my luks password.

It asks for password at top left corner, I enter password and it says trying decrypt master password. then drops me into grub shell.

After multiple times reboot and password it accepted the password , but now Its asking again for password at the bottom center of the screen and its not accepting it again now.

I am using the laptop for 2years I have written down password two keys both are not being accepted.

I tried booting into live disk, did crypto mount and decode still the same issue it says no key found with the paraphrase. Luks header shows two keys but it dont accept