Hey!

First of all, it's my first time using mods, so I apologize, if this is a noob question.
I have an issue with Multiverse NetherPortals and I thought maybe someone here might have a fix.
Small note: We already played on a survival world before I installed NetherPortals.
So this is what I did:

Installed Multiverse-Core
Installed Multiverse-Inventories
Installed Multiverse-Netherportals

Set up a survival world (our already existing one) named "survival" and a creative world named "creative", players can choose which one they want to play.
Set up a new world named "void", where players spawn to choose their game mode.

Deleted every existing nether and end world

Disabled nether and end for "void" and "creative"

Created a new nether world by typing "/mv create survival_nether nether"
Created a new end world by typing "/mv create survival_the_end end"

So now when I build a Nether portal in the survival overworld and step through it, I get into the Nether as expected.
The thing is, when I go back, the game creates a new portal a few blocks away from the original one (50 to a 100 blocks away). But of course I want the game to use the one I built.

Here's my version:

[17:08:48 INFO]: [Multiverse-Core] Multiverse-Core Version: 4.2.2-b812
[17:08:48 INFO]: [Multiverse-Core] Bukkit Version: git-Paper-439 (MC: 1.16.5)
[17:08:48 INFO]: [Multiverse-Core] Loaded Worlds: [{"MVWorld@247769722":{"Gen":null,"Type":"NORMAL","Env":"NETHER","Name":"survival_nether"}}, {"MVWorld@467761619":{"Gen":"null","Type":"FLAT","Env":"NORMAL","Name":"void"}}, {"MVWorld@264095326":{"Gen":"null","Type":"NORMAL","Env":"NORMAL","Name":"survival"}}, {"MVWorld@1625153321":{"Gen":null,"Type":"NORMAL","Env":"THE_END","Name":"survival_the_end"}}, {"MVWorld@1541339500":{"Gen":"null","Type":"NORMAL","Env":"NORMAL","Name":"Spawn"}}, {"MVWorld@984632191":{"Gen":"null","Type":"NORMAL","Env":"NORMAL","Name":"creative"}}, {"MVWorld@882569111":
[17:08:48 INFO]: [Multiverse-Core] Multiverse Plugins Loaded: 2
[17:08:48 INFO]: [Multiverse-Core] Economy being used: Simple Item Economy
[17:08:48 INFO]: [Multiverse-Core] Permissions Plugin: Bukkit Permissions (SuperPerms)
[17:08:48 INFO]: [Multiverse-Core] Dumping Config Values: (version 2.9)
[17:08:48 INFO]: [Multiverse-Core] enforceaccess: false
[17:08:48 INFO]: [Multiverse-Core] prefixchat: true
[17:08:48 INFO]: [Multiverse-Core] prefixchatformat: [%world%]%chat%
[17:08:48 INFO]: [Multiverse-Core] useasyncchat: true
[17:08:48 INFO]: [Multiverse-Core] teleportintercept: true
[17:08:48 INFO]: [Multiverse-Core] firstspawnoverride: true
[17:08:48 INFO]: [Multiverse-Core] displaypermerrors: true
[17:08:48 INFO]: [Multiverse-Core] globaldebug: 0
[17:08:48 INFO]: [Multiverse-Core] silentstart: false
[17:08:48 INFO]: [Multiverse-Core] messagecooldown: 5000
[17:08:48 INFO]: [Multiverse-Core] version: 2.9
[17:08:48 INFO]: [Multiverse-Core] firstspawnworld: world
[17:08:48 INFO]: [Multiverse-Core] teleportcooldown: 1000
[17:08:48 INFO]: [Multiverse-Core] defaultportalsearch: false
[17:08:48 INFO]: [Multiverse-Core] portalsearchradius: 128
[17:08:48 INFO]: [Multiverse-Core] autopurge: true
[17:08:48 INFO]: [Multiverse-Core] Special Code: FRN002
[17:08:48 INFO]: [Multiverse-NetherPortals] Multiverse-NetherPortals Version: 4.2.1-b786
[17:08:48 INFO]: [Multiverse-NetherPortals] Nether Prefix:
[17:08:48 INFO]: [Multiverse-NetherPortals] Nether Suffix: _nether
[17:08:48 INFO]: [Multiverse-NetherPortals] End Prefix:
[17:08:48 INFO]: [Multiverse-NetherPortals] End Suffix: _the_end
[17:08:48 INFO]: [Multiverse-NetherPortals] Nether Links: {}
[17:08:48 INFO]: [Multiverse-NetherPortals] End Links: {}
[17:08:48 INFO]: [Multiverse-NetherPortals] Bounceback: true
[17:08:48 INFO]: [Multiverse-NetherPortals] Teleport Entities: true
[17:08:48 INFO]: [Multiverse-NetherPortals] Send Disabled Portal Message: true
[17:08:48 INFO]: [Multiverse-NetherPortals] Send No Destination Message: true
[17:08:48 INFO]: [Multiverse-NetherPortals] Special Code: FRN001
[17:08:48 INFO]: [Multiverse-Inventories] Multiverse-Inventories Version: 4.2.1-b490
[17:08:48 INFO]: [Multiverse-Inventories] === Settings ===
[17:08:48 INFO]: [Multiverse-Inventories] First Run: false
[17:08:48 INFO]: [Multiverse-Inventories] Using Bypass: false
[17:08:48 INFO]: [Multiverse-Inventories] Default Ungrouped Worlds: false
[17:08:48 INFO]: [Multiverse-Inventories] Save and Load on Log In and Out: false
[17:08:48 INFO]: [Multiverse-Inventories] Using GameMode Profiles: false
[17:08:48 INFO]: [Multiverse-Inventories] === Shares ===
[17:08:48 INFO]: [Multiverse-Inventories] Optionals for Ungrouped Worlds: true
[17:08:48 INFO]: [Multiverse-Inventories] Enabled Optionals:
[17:08:48 INFO]: [Multiverse-Inventories] === Groups ===
[17:08:48 INFO]: [Multiverse-Inventories] default: {Worlds: [spawn, spawn_the_end, spawn_nether], Shares: [hit_points, economy, food_level, saturation, exhaustion, xp, total_xp, lvl, inventory_contents, armor_contents, bed_spawn, maximum_air, remaining_air, fall_distance, fire_ticks, potion_effects, last_location, ender_chest, off_hand]}

Note that I didn't set up inventories yet, I want to solve this one first.

Did I do something wrong? Or is there a way to manually link an existing overworld portal to a portal in the nether?

Thanks in advance!

I'm going to close this as a duplicate, please see #2517 for some discussion about this issue.