macOS Catalina

Cannot format external drives with Mac OS Extended (Journaled, Encrypted), receive File system formatter failed. : (-69832)

Just updated to macOS Catalina 10.15.4, and immediately one of my two external Time Machine drives, both of which are 100% (verified neither are experiencing any mechanical problems), stopped being recognized by my Mac, and when I tried to reformat it using Disk Utility, using HFS+ Encrypted (Mac OS Extended (Journaled, Encrypted)) option, I get the following readout:

Erasing “WDC WD10 02FAEX-00Y9A0 Media” (disk2) and creating “Untitled”

Unmounting disk
Creating the partition map
Waiting for partitions to activate
Formatting disk2s2 as Mac OS Extended (Journaled) with name Untitled
Initialized /dev/rdisk2s2 as a 931 GB case-insensitive HFS Plus volume with a 81920k journal

Mounting disk
Unmounting disk2s2
Touching partition type on disk2s2
Adding disk2s2 to Logical Volume Group
Creating Core Storage Logical Volume Group
Switching disk2s2 to Core Storage
Waiting for Logical Volume Group to appear
Discovered new Logical Volume Group “57A79610-663C-4C4F-9A7D-21160B977902”
Waiting for Logical Volume to appear
Formatting file system for Logical Volume
newfs_hfs: WriteBuffer:  pwrite(3, 0x1017f4000, 1048576, 19927040): Device not configured

newfs_hfs: write (sector 38920): Invalid argument

Mounting disk
Could not mount disk3 after erase
File system formatter failed. : (-69832)

Operation failed…

I've tried attaching 2 other known good drives, all exact same results. It appears Apple broke something with the .4 update, as this was not an issue, ever, in any previous version of macOS for me.

Oddly, I can use APFS encrypted, but not HFS+ Encrypted.

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