Workaround: Follower bugged after online play

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Click on each topic to see how to fix

After disconnected, follower won't follow, trade item doesn't work, dismiss doesn't work, but you can let them do things

Steps to fix

Run two skyrim game with different save, the save without follower bug called 1P, follower bugged save called 2P
1P will usually be an early save, it's progress doesn't matter, just need to have the follower

1. 1P and 2P both offline, 2P don't use console command related to follower try to fix this, if any console command had run since bugged, load an early save hasn't run console command
2. 1P hire follower that bugged in 2P, each bugged follower need to do this separately
3. 1P brings follower to non-initial location, e.g. if you leave the location you need to watch loading screen, for example Uthgerd the Unbroken, it's initial location is Bannered Mare, then Whiterun for it called "noninitial location", because you go from Whiterun into Bannered Mare you go through a door and watch loading screen
4. 1P connect to server and launch party become party leader
5. 2P join server and should automatically join 1P party, if bAutoPartyJoin set to false on this server, 1P invite 2P
6. 2P Press F2 and teleport to 1P
7. 1P open console and select follower or do prid <id>, for example Uthgerd the Unbroken is prid 91918, Lydia is prid a2c94
8. 1P talk to follower and dismiss it
9. Wait follower leave current location like open doors and disappears
10. Wait again after follower leave, roughly 5 seconds
11. 1P type console command moveto player
12. 2P try talk to follower to see if already enter dismissed status. If still glitch, 1P hire follower again, dismiss, wait leave, moveto player cycle several times until 2P see dismissed
13. Once 2P verified dismissed, don't hire follower (Press Tab exit menu), disconnect, save a new save
14. 2P test hire the follower, the follower should be fixed

Overall suggest to online play:

• Don't use follower if possible
• If party leader has follower, let him dismiss and watch follower leave current location before disconnect to prevent 2P offline play encounter follower glitch
• The bug will spread between online saves, before solve this don't be online party leader

Follower can't carry any item with weight, `removeallitems` and `recycleactor` doesn't work, `getav carryweight` shows 300, `modav carryweight` and `setav carryweight` doesn't work, but can trade weight item with another follower

Steps to fix

1. Open console and select follower or do prid <id>, for example Uthgerd the Unbroken is prid 91918, Lydia is prid a2c94
2. Take all items off follower to avoid lose anything
3. Run removeallitems
4. Run showinventory

Lydia (000A2c94) has 3 items:
16583 - Iron Arrow (0010E2DE) - Worn
221184000 - Iron Arrow (0010E2DE) - Worn
17327484 - Hunting Bow (0010E2DD) (100,100.00%)

// Format
// <item count> - <item name> - <item id> - <etc>

5. Look at numbers, here my Lydia has 17327484 hunting bow so carry weight is running out
6. Run command removeitem <item id> <item count> like this removeitem 10E2DD 17327484
7. Run command to remove other unwanted item count
8. Follower should carry things now

Follower are easy to die or mage follower doesn't cast any spells instead always use hunting bow

Steps to fix

1. Create a file called "DFA.txt" in game folder aside SkyrimSE.exe with these content

getavinfo HealRate
getavinfo MagickaRate
getavinfo StaminaRate
getavinfo InventoryWeight
getavinfo CarryWeight
getavinfo Health
getavinfo Magicka
getavinfo Stamina

2. Select question follower like prid 1c1a4
3. Run command bat "DFA.txt"

> getavinfo Health
GetActorValueInfo: Health on Brelyna Maryon
...Current Value: 150.00 Computed Base: 292.00
...Base Value components:
......Reference Base Value: 292.00 (auto-calculated)
...Modifiers: Temp: 0.00 Perm: -142.00 Damage: 0.00
> getavinfo Magicka
GetActorValueInfo: Magicka on Brelyna Maryon
...Current Value: -10.00 Computed Base: 195.00
...Base Value components:
......Reference Base Value: 195.00 (auto-calculated)
...Modifiers: Temp: 40.00 Perm: -245.00 Damage: 0.00
> getavinfo Stamina
GetActorValueInfo: Stamina on Brelyna Maryon
...Current Value: 70.00 Computed Base: 98.00
...Base Value components:
......Reference Base Value: 98.00 (auto-calculated)
...Modifiers: Temp: 0.00 Perm: -28.00 Damage: 0.00

// Format
// Reference Base Value: <theory value without any modification>
// Modifiers: Temp: <value affected by equipment> Perm: <value set by forceav or modav>

4. Look at Perm: section, if there is any negative number for example Magicka on Brelyna Maryon Perm: -245.00
5. Run modav magicka 245
6. Use command getavinfo magicka to verify Perm back to 0
7. Follower should cast spell normally. For follower like Brelyna Maryon, if she doesn't use conjuration magic, check if her wearing any weapon, take it back and let she wear the damn default bow.
8. Look at Health and Stamina, they may also bugged. The most common is Health, Magicka and Stamina. If someone occasionally cast Marked for Death on NPCs could also fix by using this method restoreav damageresist 9999999 from UESP wiki
9. If want to do a complete scan to check any potential issue, use the 3 files DFAFull1.txt, DFAFull2.txt, DFAFull3.txt, these file list every actor value a follower has so you can check if there is any negative Perm

DFAFull1.txt

getavinfo Aggression
getavinfo Confidence
getavinfo Energy
getavinfo Morality
getavinfo Mood
getavinfo Assistance
getavinfo OneHanded
getavinfo TwoHanded
getavinfo Marksman
getavinfo Block
getavinfo Smithing
getavinfo HeavyArmor
getavinfo LightArmor
getavinfo Pickpocket
getavinfo Lockpicking
getavinfo Sneak
getavinfo Alchemy
getavinfo Speechcraft
getavinfo Alteration
getavinfo Conjuration
getavinfo Destruction
getavinfo Illusion
getavinfo Restoration
getavinfo Enchanting
getavinfo Health
getavinfo Magicka
getavinfo Stamina
getavinfo HealRate
getavinfo MagickaRate
getavinfo StaminaRate
getavinfo SpeedMult

DFAFull2.txt

getavinfo InventoryWeight
getavinfo CarryWeight
getavinfo CritChance
getavinfo MeleeDamage
getavinfo UnarmedDamage
getavinfo Mass
getavinfo VoicePoints
getavinfo VoiceRate
getavinfo DamageResist
getavinfo PoisonResist
getavinfo FireResist
getavinfo ElectricResist
getavinfo FrostResist
getavinfo MagicResist
getavinfo DiseaseResist
getavinfo PerceptionCondition
getavinfo EnduranceCondition
getavinfo LeftAttackCondition
getavinfo RightAttackCondition
getavinfo LeftMobilityCondition
getavinfo RightMobilityCondition
getavinfo BrainCondition
getavinfo Paralysis
getavinfo Invisibility
getavinfo NightEye
getavinfo DetectLifeRange
getavinfo WaterBreathing
getavinfo WaterWalking
getavinfo IgnoreCrippledLimbs
getavinfo Fame
getavinfo Infamy
getavinfo JumpingBonus
getavinfo WardPower
getavinfo RightItemCharge
getavinfo ArmorPerks
getavinfo ShieldPerks
getavinfo WardDeflection
getavinfo Variable01
getavinfo Variable02
getavinfo Variable03
getavinfo Variable04
getavinfo Variable05
getavinfo Variable06
getavinfo Variable07
getavinfo Variable08
getavinfo Variable09
getavinfo Variable10
getavinfo BowSpeedBonus
getavinfo FavorActive
getavinfo FavorsPerDay
getavinfo FavorsPerDayTimer
getavinfo LeftItemCharge
getavinfo AbsorbChance
getavinfo Blindness
getavinfo WeaponSpeedMult
getavinfo ShoutRecoveryMult
getavinfo BowStaggerBonus
getavinfo Telekinesis
getavinfo FavorPointsBonus
getavinfo LastBribedIntimidated
getavinfo LastFlattered
getavinfo MovementNoiseMult
getavinfo BypassVendorStolenCheck
getavinfo BypassVendorKeywordCheck
getavinfo WaitingForPlayer
getavinfo OneHandedMod
getavinfo TwoHandedMod

DFAFull3.txt

getavinfo MarksmanMod
getavinfo BlockMod
getavinfo SmithingMod
getavinfo HeavyArmorMod
getavinfo LightArmorMod
getavinfo PickPocketMod
getavinfo LockpickingMod
getavinfo SneakMod
getavinfo AlchemyMod
getavinfo SpeechcraftMod
getavinfo AlterationMod
getavinfo ConjurationMod
getavinfo DestructionMod
getavinfo IllusionMod
getavinfo RestorationMod
getavinfo EnchantingMod
getavinfo OneHandedSkillAdvance
getavinfo TwoHandedSkillAdvance
getavinfo MarksmanSkillAdvance
getavinfo BlockSkillAdvance
getavinfo SmithingSkillAdvance
getavinfo HeavyArmorSkillAdvance
getavinfo LightArmorSkillAdvance
getavinfo PickPocketSkillAdvance
getavinfo LockpickingSkillAdvance
getavinfo SneakSkillAdvance
getavinfo AlchemySkillAdvance
getavinfo SpeechcraftSkillAdvance
getavinfo AlterationSkillAdvance
getavinfo ConjurationSkillAdvance
getavinfo DestructionSkillAdvance
getavinfo IllusionSkillAdvance
getavinfo RestorationSkillAdvance
getavinfo EnchantingSkillAdvance
getavinfo LeftWeaponSpeedMult
getavinfo DragonSouls
getavinfo CombatHealthRegenMult
getavinfo OneHandedPowerMod
getavinfo TwoHandedPowerMod
getavinfo MarksmanPowerMod
getavinfo BlockPowerMod
getavinfo SmithingPowerMod
getavinfo HeavyArmorPowerMod
getavinfo LightArmorPowerMod
getavinfo PickPocketPowerMod
getavinfo LockpickingPowerMod
getavinfo SneakPowerMod
getavinfo AlchemyPowerMod
getavinfo SpeechcraftPowerMod
getavinfo AlterationPowerMod
getavinfo ConjurationPowerMod
getavinfo DestructionPowerMod
getavinfo IllusionPowerMod
getavinfo RestorationPowerMod
getavinfo EnchantingPowerMod
getavinfo DragonRend
getavinfo AttackDamageMult
getavinfo HealRateMult
getavinfo MagickaRateMult
getavinfo StaminaRateMult
getavinfo WerewolfPerks
getavinfo VampirePerks
getavinfo GrabActorOffset
getavinfo Grabbed
getavinfo DEPRECATED05
getavinfo ReflectDamage