Unable to Partition Drive for Boot Camp

I am unable to reinstall Windows 10 on my MacBook Pro. It's a 13" Retina Early 2015 running 10.14.1. I had installed it once on here before successfully (was High Sierra at the time). I did remove that partition later on without using BCA to do so.

If I attempt now, it tells me it's unable to create the partition and to run First Aid on the disk. I have done this in Recovery Mode, and if there are errors, it's not reporting anything to me.

I have reset PRAM, NVRAM and SMC for good measure. I really didn't think any of these would be relevant but what I've learned is these are common troubleshooting techniques for these systems.

In a more direct method, I have reinstalled the OS in 3 different ways.

Booted into standard recovery, used Erase on the HDD, reinstalled the OS. Problem persists.

Reinstalled using Internet Recovery, used Erase on the HDD, reinstalled the OS. Problem persists.

Created a bootable flash drive for Mojave after downloading it from the App store and executing a sudo command against Install MacOS Mojave/Contents/Resources/createinstallmedia. I changed the startup disk to my flash drive, and again, used Erase on the HDD, reinstalled the OS. Problem is still persisting.

I have to be missing something with getting this HDD completely reimaged, because I believe there must be some lingering shred of Boot Camp's previous configuration somewhere.

Based on reading other posts, I noticed in one cirumstance, reporting the output of diskutil was requested.

/dev/disk0 (internal, physical):

#: TYPE NAME SIZE IDENTIFIER

0: GUID_partition_scheme *121.3 GB
disk0

1: EFI EFI 209.7 MB
disk0s1

2: Apple_APFS Container disk1 121.1 GB
disk0s2

/dev/disk1 (synthesized):

#: TYPE NAME SIZE IDENTIFIER

0: APFS Container Scheme - +121.1 GB
disk1

Physical Store disk0s2

1: APFS Volume Macintosh HD 19.4 GB disk1s1

2: APFS Volume Preboot 44.8 MB disk1s2

3: APFS Volume Recovery 512.8 MB
disk1s3

4: APFS Volume VM 1.1 GB disk1s4

/dev/disk3 (disk image):

#: TYPE NAME SIZE IDENTIFIER

0: CCCOMA_X64FRE_EN-US... +5.1 GB disk3