Here're the mods I had enabled when I got all the XML errors. Unfortunately I didn't save the actual error itself. These are the localized names from a save I have with the specific modlist; the only other mods I had enabled were this one and Chemicals and Neutroamine, which had a separate conflict with Sparkling Worlds. Each mod on here is the Steam version as of yesterday.

Core
HugsLib
JecsTools
Psychology
Giddy-up! Core
Giddy-up! Caravan
Giddy-up! Battle Mounts
Giddy-up! Ride and Roll
Advanced Shield Belts B19
Simple Concrete B19
Numbers
Project RimFactory 3.0 - Public Beta
Incident Person Stat
Storyteller Enhanced
[FSF] Encounter Map Resources
Simply More Bridges
More Slaves [1.0]
World Search
Bulk Carrier
OgreStack
Nano Repair Tech
More Faction Interaction
Plant Growth Sync
Squad UI Tweaks
Let's Trade! [B19]
Pause on all letters
[SYR] Harvest Yield Patch
Toolboxifier
Arrwulf - Silent Doors [1.0]
CustomDeathRandomness
NightVision
[SYR] Set Up Camp
Quarry
Craftsmanship
[XND] Watermill Tweaks
Blighted Alert
Allow Tool
A Dog Said...
Animals Logic
Avoid Friendly Fire
Better Pawn Control
Bulk Medicine Production
Camera+
CleaningArea
Colony Manager
Cut plants before building
Dubs Bad Hygiene
EdB Prepare Carefully
FashionRIMsta
Feed The Colonists
Fluffy Breakdowns
Deep Ore Identifier
No Forced Slowdown
Hand Me That Brick Lite
Harvest Organs Post Mortem - 4.0 [B19]
Hospitality
Industrial Rollers
Just Ignore Me Passing
Progress Renderer
Medical Tab
MendAndRecycle
Misc. Robots
Misc. Training
Pick Up And Haul
Predator Hunt Alert
QualityBuilder
RT Fuse
RT Solar Flare Shield
RT Power Switch
RunAndGun
Static Quality Plus B19.1
Tech Advancing
[KV] Trading Spot - B19
[FSF] Improved Vanometric Power Cells
VGP Vegetable Garden
Where is my weapon?
[B19] Dire Raids
B19 - Imprisonment On The Go! (Make Pawns Prisoners Without Beds)
[KV] Force Do Job - B19
Halo - Weapons
Rimsenal - Enhanced Vanilla Pack
Rimsenal - Feral
Heat Map
ResearchPal
Smart Medicine
Meals On Wheels
The Price Is Right
Fuel Economy
Replace Stuff
Share The Load
What Is My Purpose
Mining Priority
TD Enhancement Pack
Thick Armor
Gear Up And Go
Doors Expanded
Lord of the Rims - Unlimited
Centralized Climate Control
Damage Indicators
[WD] Materials For Vents
The Birds and the Bees
A RimWorld of Magic
Area Unlocker
Bulk Components
Dismiss Trader
4M Mehni's Misc Modifications
RimQuest
Animal Tab
[B19] RimStory
Locks
RenameColony
Pharmacist
ED-EnhancedOptions
Double Population
[FSF] Vanilla Bionics Expansion
Star Wars - Fully Functional Lightsabers
Rimsenal - Federation
Snap Out!
Polarisbloc - Core LAB
Polarisbloc - Security Force
Death Rattle
[B19] Thanks For All The Fish
Star Wars - Factions
Call of Cthulhu - Factions
Humanoid Alien Races 2.0
Twi'lek Race
Syntho Race
Racc Race B19
Ferrex Race B19
Logann Race B19
Androids
Argonians of Blackmarsh
Lord of the Rims - Elves
Lord of the Rims - Dwarves
Lord of the Rims - Hobbits
Wookiee
Children, school and learning
Sparkling Worlds - Full Mod [B19]
Run and Hide
VGP Garden Medicine
VGP Garden Fabrics