PC Modded world stuck on "Receiving Tile Data: Complete!"

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This is a problem me and some friends have had occur twice now.
On two different worlds we've had them work normally for a long while, but eventually we ran into a problem where anybody who tries to connect gets stuck at "Receiving Tile Data: Complete!"
We've tried making new characters, restarting the server, removing beds/blocks around the spawn point, nothing seems to fix it.
The issue seems to arise borderline randomly as well, as we can't seem to narrow down the cause of it.
While making a new world would fix this issue, we're trying to see if there's a specific cause of it so this never happens again.

One of my friends managed to successfully connect one time with a new character, but every other attempt got stuck.

Here's all the mods we're using if this helps, major ones in bold:
Calamity (v1.2.3.6)
Thorium Mod (v1.4.3.6)
Tremor Remastered (v1.3.2.7)
GRealm (v1.0.7.5)
Base Mod (v1.0.7.3)
Recipe Browser (v0.5)
Expanded Sentries (v0.934)
Which Mod Is This From? (v2.4)
Fast Start (v0.5)
ProjectC (v1.5)
Luminite Hammers (v0.1)
Hamstar's Helpers (v1.2.1)
DPS ToolTip (v1.1)
Gambler NPC (v0.1)
Teleporters unchained (V1.1)
Banner Checklist (v0.1.0.2)
Magic Storage (v0.4.3.1)
Storage Library (v0.3)
Fluid Library (v0.1)
Base Libarary (v0.2.4)
Reduced Grinding (v4.23)
Insight Reborn (v2.0.2)
MultiLure (v2.1.1)
Wing Slot (v1.2.10)
More Fair Soul Drops (v1.0)
Impervious Lihzahrd Furniture (v0.6)
Boss Checklist (v0.1.4.2)
Full Health Respawn (v0.0.1)
Very Short Respawn Time (v0.2)
VeinMiner (v1.2.1)
Ore Seeds (v0.4.0)

After a little bit of debugging my friend suspects it may be due to Magic Storage, but he's not quite sure yet.

As it turns out, it was Magic Storage causing the issue, I guess we just hit an item storage limit or something.
Still if anyone knows the exact cause of the problem via Magic Storage, let me know!

 

[Balec]

There is a limit to the amount of items allowed in a certain radius of 3000 or something like that. All I know is, more than 3000 = not loading, I'm not to technical. just build another storage area far away and make a teleport system for easy access, its what I did.

 

[Soullessgrape]

I had this same problem when loading a new world, I need help with it

In case you want a list of my mods here you go

AlchemistNPC
Auto Trash
Beyond the Forgotten Ages
Boss Checklist
Death Screen Countdown
Elements Awoken
Fargo's mutant
Fernium
Helpful NPCS
Infinity - Endless Items
Magic Storage
Mod Helpers
Mod of Redemption
More Accesories
No More Tombs
Recipe Browser
Regen from Bosses
Rewards
Sacred Tools
Shorter Respawn time
Spirit Mod
Terraria 3D
Terraria Hooks
Split Mod
Thorium
Tremor
Unleveled
Vein Miner
What Mod Is This From
Wing Slot
Yet Another Boss Health Bar

In case you forgot, the world is new

I have found out the problem
It seems that boss regen was the cause

 

[Darkest YT]

I had this same problem when loading a new world, I need help with it

In case you want a list of my mods here you go

AlchemistNPC
Auto Trash
Beyond the Forgotten Ages
Boss Checklist
Death Screen Countdown
Elements Awoken
Fargo's mutant
Fernium
Helpful NPCS
Infinity - Endless Items
Magic Storage
Mod Helpers
Mod of Redemption
More Accesories
No More Tombs
Recipe Browser
Regen from Bosses
Rewards
Sacred Tools
Shorter Respawn time
Spirit Mod
Terraria 3D
Terraria Hooks
Split Mod
Thorium
Tremor
Unleveled
Vein Miner
What Mod Is This From
Wing Slot
Yet Another Boss Health Bar

In case you forgot, the world is new

I have found out the problem
It seems that boss regen was the cause

how would one fix this? im having the same problem