Custom partitionioning "Decrypt" does not work

[rasmus91]

What Happened?

When installing with custom partitioning, upon selecting a LUKS partition, a prompt will pop up, asking to decrypt the partition, but when "decrypt" is pressed, nothing seems to happen.

Steps to Reproduce

1. Go into demo mode
2. partition disk as:
   • 500 MB fat32 for efi
   • XGB whatever
3. cryptsetup luksFormat --type luks2 /dev/<partition>
4. open the installer
5. When prompted for install type pick custom
6. click the luks partition to use it for something, enter password, and press decrypt

Expected Behavior

I expected the drive to decrypt so that i could install root to it.

OS Version

7.x (Horus)

Software Version

Latest release (I have run all updates)

Log Output

No response

Hardware Info

No response

[neylsongularte]

In my case decrypt doesn't work either, there must be a problem when running on top of lvm

[neylsongularte]

In DecryptMenu.vala: