So I have built a 1.16.5 modpack, and apparently this is an issue experienced by many people using version 1.16.5, but no one recieved help to this dilemma.

I run the modpack on CurseForge and everything loads smoothly without lag spikes or error up until 10 minutes, then the mobs freeze in place, chests can be clicked on but will not open, commands will not register in chat box, and trying to close out of the launcher will result in the process freezing into place entirely, forcing me to Cntrl-Alt-Del force close the program.

I give the modpack 8-10GB of ram, and have a brand new MSI laptop with amazing specs, so I know that's not the issue.

My Modlist is:

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  Mysterious Mountain Lib (by sz0999312)
  
• 
  Just Enough Resources (JER) (by way2muchnoise)
  
• 
  Illagers Wear Armor (by almightytallestred)
  
• 
  YUNG's Bridges (Forge) (by YUNGNICKYOUNG)
  
• 
  Eidolon's Sanguine Arsenal (by alexandr_0031)
  
• 
  YUNG's Extras (Forge) (by YUNGNICKYOUNG)
  
• 
  Majrusz's Enchantments (by Majrusz17)
  
• 
  Bookshelf (by DarkhaxDev)
  
• 
  Blueprint (by TeamAbnormals)
  
• 
  Connectivity[Forge/Fabric] (by someaddon)
  
• 
  Minecraft Eons (by accentaur1)
  
• 
  Wyrmroost Spawn Control (by PwnagePineapple)
  
• 
  Horse Tack (by misteriawolfe)
  
• 
  Enchantment Descriptions (by DarkhaxDev)
  
• 
  DEUF - Duplicate Entity UUID Fix (by CAS_ual_TY)
  
• 
  YUNG's Better Mineshafts (Forge) (by YUNGNICKYOUNG)
  
• 
  ApexCore (by ApexModder)
  
• 
  Nature's Compass (by Chaosyr)
  
• 
  Flywheel (Legacy) (by jozufozu)
  
• 
  Charm Reforged (by svenhjol)
  
• 
  CaveBiomeAPI [Forge] (by blackgear27)
  
• 
  Custom NPCs (by Noppes_)
  
• 
  LiteWolfCore (by LiteWolf101)
  
• 
  Eidolon (by elucent_)
  
• 
  What Did You Vote For? 2021 mob vote: Glare, Allay and Copper Golem! (by alexandersfunandgames)
  
• 
  Untamed Wilds (by raytrace82)
  
• 
  Autumnity (by TeamAbnormals)
  
• 
  Fantasy's Furniture (by ApexModder)
  
• 
  Jade 🔍 (by Snownee)
  
• 
  Serene Seasons (by TheAdubbz)
  
• 
  Upgraded Core (by Rolfmao)
  
• 
  Fast Leaf Decay (by olafskiii)
  
• 
  Alex's Delight (by NCP_Bails)
  
• 
  Caves & Cliffs Backport (Additions) (by jukittita)
  
• 
  Toast Control (by Shadows_of_Fire)
  
• 
  Enhanced Celestials - Blood, Blue, & Harvest (Super) Moons (by Corgi_Taco)
  
• 
  Supplementaries (by MehVahdJukaar)
  
• 
  Snow! Real Magic! ⛄ (Forge) (by Snownee)
  
• 
  YUNG's Better Strongholds (Forge) (by YUNGNICKYOUNG)
  
• 
  Mouse Tweaks (by YaLTeR)
  
• 
  Let Me Despawn (by frikinjay)
  
• 
  Cloth Config API (Fabric/Forge/NeoForge) (by shedaniel)
  
• 
  Mod Name Tooltip (by mezz)
  
• 
  Farmer's Delight Compats (by burritoeatinghamster)
  
• 
  L_Ender 's Cataclysm (by mcl_ender)
  
• 
  Just Enough Professions (JEP) (by Mrbysco)
  
• 
  Truly Treasures (by Ineffa)
  
• 
  Chipped (by terrariumearth)
  
• 
  Honey Expansion (Add-on for Farmer's Delight) (by Spiteful_raccoon)
  
• 
  Deadly End Phantoms (by the_infamous_1)
  
• 
  Paxi (Forge) (by YUNGNICKYOUNG)
  
• 
  Citadel (by sbom_xela)
  
• 
  Entity Collision FPS Fix (by Corgi_Taco)
  
• 
  Darker Depths (by naterbobber)
  
• 
  Project: Vibrant Journeys (by OrderedChaosDev)
  
• 
  Transparent (by Trikzon)
  
• 
  Placebo (by Shadows_of_Fire)
  
• 
  Hunter'sReturn (by bagu_chan500)
  
• 
  Create (by simibubi)
  
• 
  Sun and Moon Celestial Configuration (by InfernalStudios)
  
• 
  Armourer's Workshop (by RiskyKen)
  
• 
  Parry This! (by theishiopian)
  
• 
  Prehistoric Delight (A Farmer's Delight Add-on) (by nocubeyt)
  
• 
  Alex's Mobs (by sbom_xela)
  
• 
  Chisels & Bits - For Forge (by AlgorithmX2)
  
• 
  Decorative Blocks (by stohun)
  
• 
  Farsight [Forge] (by someaddon)
  
• 
  Abnormals Delight (by TeamAbnormals)
  
• 
  Architect's Palette (by Jsburg)
  
• 
  Upgraded Netherite : Ultimerite (by Rolfmao)
  
• 
  FTB Library (Forge) (by FTB)
  
• 
  Nef's Medieval decoration (by neoelfe0)
  
• 
  Better Burning (by DarkhaxDev)
  
• 
  Additional Banners (by DarkhaxDev)
  
• 
  Controlling (by Jaredlll08)
  
• 
  Rubidium (by Asek3)
  
• 
  HT's TreeChop (by hammertater)
  
• 
  Create: Steam Powered (by yuesha_yc)
  
• 
  Cataclysm Boss Bar (by pOtAto__bOy)
  
• 
  YUNG's Better Dungeons (Forge) (by YUNGNICKYOUNG)
  
• 
  Lazy DataFixerUpper(LazyDFU) [FORGE] (by Corgi_Taco)
  
• 
  Unnamed Animal Mod (by Coda1552)
  
• 
  Tough As Nails (by TheAdubbz)
  
• 
  JourneyMap (by techbrew)
  
• 
  Wyrmroost (by Shannieann)
  
• 
  The Endergetic Expansion (by TeamAbnormals)
  
• 
  AstikorCarts [Horse Carts] (by issork)
  
• 
  NetherPortalFix (by BlayTheNinth)
  
• 
  Farmer's Delight Integration (by iku_tv)
  
• 
  DisenchantingForge (by chirptheboy)
  
• 
  Oh The Biomes You'll Go (by AOCAWOL)
  
• 
  Just Enough Items (JEI) (by mezz)
  
• 
  YUNG's Better Caves (Forge) (by YUNGNICKYOUNG)
  
• 
  Caves & Cliffs Backport (by blackgear27)
  
• 
  Saturn (by AbdElAziz333)
  
• 
  Cavalry (by that_guy_spazz0)
  
• 
  River Treasures (by TrueRealCursed_Warrior)
  
• 
  Farmer's Respite (by lumpazl)
  
• 
  Drink Beer (Forge) (by Lekavar)
  
• 
  GeckoLib (by Gecko)
  
• 
  YUNG's API (Forge) (by YUNGNICKYOUNG)
  
• 
  Embeddium/Rubidium Extras (by Anthxny)
  
• 
  Smooth Boot (Forge) (by UltimateBoomer)
  
• 
  Moonlight Lib (by MehVahdJukaar)
  
• 
  Majrusz Library (by Majrusz17)
  
• 
  ConnectedTexturesMod (by tterrag1098)
  
• 
  Obfuscate (by MrCrayfish)
  
• 
  DoesPotatoTick? (by pOtAto__bOy)
  
• 
  Spawner Bug Fix (by MacTso)
  
• 
  Nether's Delight (by lumpazl)
  
• 
  Paintings ++ (by AbsolemJackdaw)
  
• 
  Genetic Animals (by mokiyoki)
  
• 
  Underwater Enchanting (by Serilum)
  
• 
  Spice of Life: Carrot Edition (by lordcazsius)
  
• 
  Upgraded Netherite (by Rolfmao)
  
• 
  Corn Delight[Forge] (by sz0999312)
  
• 
  Dragon Survival [Forge] (by BlackAuresArt)
  
• 
  Void Fog (by Tamaized)
  
• 
  Krypton Reforged (by Anthxny)
  
• 
  Decorative Blocks modded compat (by Evo_934)
  
• 
  Epic Knights: Shields, Armor and Weapons [Fabric & Forge] (by magistu_)
  
• 
  FTB Chunks (Forge) (by FTB)
  
• 
  WorldEdit (by sk89q)
  
• 
  AttributeFix (by DarkhaxDev)
  
• 
  Fusion (Connected Textures) (by SuperMartijn642)
  
• 
  Smarter Farmers (farmers replant) (by MehVahdJukaar)
  
• 
  Copper Pot! (A Farmer's Delight Add-on) (by davigjung)
  
• 
  TexTrue's Rubidium Options (by TexTrue)
  
• 
  Farmer's Delight (by vectorwing)
  
• 
  Polymorph (Fabric/Forge/Quilt) (by TheIllusiveC4)
  
• 
  Architectury API (Fabric/Forge/NeoForge) (by shedaniel)
  
• 
  Brewevolution 🍺 (by warlonmhite)
  
• 
  Growthcraft Community Edition (by Alatyami)
  
• 
  Upgrade Aquatic (by TeamAbnormals)
  
• 
  Prehistoric Fauna (by superlord_9362)
  
• 
  Infernal Expansion (by InfernalStudios)
  
• 
  Chisel (by tterrag1098)
  
• 
  Equipment Compare [Forge] (by Grend_G)
  
• 
  Bonfires (by Wehavecookies56)
  
• 
  Embeddium/Rubidium Dynamic Lights (by Anthxny)
  
• 
  Heroic Armory Legacy (by TheRenatiuX)
  
• 
  Kiwi 🥝 (Forge) (by Snownee)
  
• 
  Ice and Fire: Dragons (by sbom_xela)
  
• 
  Bayou Blues (by team_aurora_modding)
  
• 
  Savage & Ravage (by TeamAbnormals)
  
• 
  Immersive Cooking (by CrimsonDragonRider)
  
• 
  End's Delight (by foggyhillside)
  
• 
  Curios API (Forge/NeoForge) (by TheIllusiveC4)
  
• 
  Craftable Horse Armour & Saddle [CHA&S] (by EwyBoy)
  
• 
  Cosmetic Armor Reworked (by LainMI)
  
• 
  Searchables (by Jaredlll08)
  
• 
  Wandering Bags (by Furti_Two)
  
• 
  JourneyMap Integration (by frankV)
  
• 
  Large Meals (An Add-on for Farmer's Delight) (by LostWiz08)
  
• 
  Kobolds! (by Jusey1z)
  
• 
  Allurement (by TeamAbnormals)
  
• 
  Odd Water Mobs (by jocosero)
  
• 
  Collective (by Serilum)
  
• 
  Sapience (by the_infamous_1)
  
• 
  Evil Wandering Trader (by Paralogoss)
  
• 
  End Remastered (by jack_bagel)
  
• 
  SuperMartijn642's Core Lib (by SuperMartijn642)
  
• 
  SeasonHUD (by IanAnderson)
  
• 
  Iceberg [Forge] (by Grend_G)
  
• 
  Connected Glass (by SuperMartijn642)
  
• 
  Better End Potato Edition (by pOtAto__bOy)
  
• 
  Realistic Horse Genetics (by sekelsta)
  
• 
  Better Golems (by bagu_chan500)
  
• 
  Bygone Nether (by izofar)
  
• 
  FTB Teams (Forge) (by FTB)
  
• 
  Ice Prevents Crop Growth (by Serilum)
  
• 
  Illagers+ (by LiteWolf101)
  
• 
  Atmospheric (by TeamAbnormals)
  
• 
  Druidcraft (by VulpTheHorseDog2)
  
• 
  FerriteCore ((Neo)Forge) (by malte0811)
  
• 
  Upgraded Netherite : Items (by Rolfmao)
  
• 
  BlockCarpentry (by PianoManu)
  
• 
  Oculus (by Asek3)
  
• 
  Vanilla Expanded - Orcz (by duke2die4)
  
• 
  Comfortable Nether (by TheRealZonko)
  
• 
  Clumps (by Jaredlll08)
  
• 
  The Irregular Chef! (A Farmer's Delight Add-on) (by davigjung)
  
• 
  Patchouli (by Vazkii)
  
• 
  In Control! (by McJty)
  
• 
  AI Improvements (by QueenOfMissiles)
  
• 
  More Villagers (by SameDifferent)
  
• 
  Chocolate Fix (by AlcatrazEscapee)
  
• 
  RoadRunner (by MaxNeedsSnacks)
  
• 
  Just Mob Heads (by Serilum)
  
• 
  Hexerei (by JoeFoxe)
  
• 
  Just Player Heads (by Serilum)