I have a bunch of mods (perhaps I shouldn't, but I always end up doing this), I'll list them in order of lowest to highest priority:
Skyrim
Update
Dawnguard
HearthFires
moonpath
SPERG
SPIKE
WARZONES - Civil Unrest
Climates of Tamriel
ACE Archery
ACE Armor
ACE BYOG
ACE Enchanting
ACE Magic
ACE Melee
ACE Realistic Fighting
ACE Smithing
ACE Speech
ACE Synergy
Apocalypse - The Spell Package
ASIS-Dependency
BEtterQuestObjectives
Chesko_Frostfall
Chesko_LoreBasedLoadingScreens
Complete Crafting Overhaul - BS version
Complete Crafting Overhaul
Dawnguard Breezehome Fix
dD - Realistic Ragdoll Force - Realistic
Deadly Dragons
DFB - Dawnguard - Crossbow Expansion
Dynamic Merchants
EmpoweredMagic
EmpoweredMagic_Dawnguard
EmpoweredMagic_Dragonborn
gonkishvampdens
Guard Dialogue Overhaul
HighResTexturePack01
HighResTexturePack02
HighResTexturePack03
hothtrooper44_ArmorCompilation
Increased Bounty & Guild Rewards
JK Crafting Breakdown
moonpath_questdata
Path of Shadows
SkyUI
SPERG
Tamriel Compendium - Skill Books
Tamriel Compendium
TheTownISSafe
ToL_Core_by_Brevi
Unofficial Dawnguard Patch
Onofficial Dragonborn Patch
Unoffical Hearthfire Patch
Unofficial High Resolution Patch
Unofficial Skyrim Patch
Weapons and Armor Fixes - Hacks
Weapons and Armor Fixes
XCEMwW
3DNPC
Immersive Weapons
Skyrim Immersive Creatures - DLC2
Skyrim Immersive Creatures
Climates of Tamriel-Nights-Level-1
prod80_CoT_patch
StaticMeshImprovementMod-DragonbornTernFix
StaticMesh ImprovementMod-FurnitureChestSnowFix
StaticMeshImprovementMod
ImprovedScImpUniforms - WARZONES only
This is a very long list, so I doubt that anyone will root through that if a mod is the problem. It'd be pretty nice though. I don't know what some of these mods actually do, I just looked at a recommended mods list.
I tried disabling SPERG, Deadly Dragons and both Skyrim Immersive Creatures mods because I think these may affect dragons but nothing changed.
Edit: Okay, I disabled every single mod except the official ones, the unofficial patches and SkyUI (Jesus Christ I had no idea this game had such an abysmal UI without this mod) but the problem still persists... :\
Could the problem be load order or something? I don't know anything about that.
If that list is the same as your load order I can see numerous problems.
Dragonborn doesn't appear in that list at all. Did you copy this manually? It would be better to copy the list from plugins.txt located in [User]/AppData/Local/Skyrim
You have the Unofficial Skyrim Patch loading after the Unofficial DLC patches, which will cause errors and may be one of the roots of your problem.
You have the unofficial DLC patches loading after mods that make other alterations to DLC content, this will likely cause errors.
Warzones ceased development mid way through last year and is out of date with the base game causing crashes.
One thing to note, many of the larger mods make changes that get saved into the savefile and stay there even if you disable the mod. The only way to be completely sure that something works or that a problem is being caused by a disabled mod, is to run a new game without the disabled mods.