Ok my friend, I will follow the procedure to see if I can find out which addon is conflicting!!!
But I can already tell you that the information I sent is all that appears.
I temporarily solved the problem by downgrading Loopdrop Rebom to version 4.46 and the problem no longer appears.
As soon as I have any more information I will pass it on to you.
hugs

Hello Phinix
I started using his Addon, and I can't do without it anymore, thank you.
It turns out that all of a sudden I started getting the following error message:

LootDropGui_Initialized:2: function expected instead of nil
stack traceback:
LootDropGui_Initialized:2: in function '(main chunk)'
<Locals> self = ud </Locals>

This error only appears at the initial moment of the char login, and after canceling this message it does not return, until the moment I make a new login.

What can I do to fix this problem?

Hello! you wrote below on language file.

ja.lua :
L.TransmuteCrystals = "クリスタルを変身させる"
L.TransmuteCrystalstip = "Transmute Crystalsを表示する必要がありますか？"

But JP name Transmute Crystals isn't correct.
Please fix the translate.

ja.lua :
L.TransmuteCrystals = "変性クリスタル"
L.TransmuteCrystalstip = "変性晶石を表示する必要がありますか？"

It was on Pawkette, turning off full companion name stopped the error happening

When I get rapport gains with Ember I get this error:

user:/AddOns/LootDrop/LootDrop.lua:8136: operator .. is not supported for string .. nil
stack traceback:
user:/AddOns/LootDrop/LootDrop.lua:8136: in function 'LootDrop:CompanionRapportUpdate'
|caaaaaa<Locals> self = [table:1]{_skillFenceXpLastVal = 0, _skillBrotherhoodXpLastVal = 0, _preview_endeavor = 0, _preview_telvar = 0, _xpCompanionId = 3, _rapportId = 1, _apLastRPVal = 0, _coinId = 3, loaded = T, _EndeavorLastVal = 0, _skillFighterXpLastVal = 0, _rapportLastVal = 125, _skillUndauntedXpLastVal = 0, currentXP = 0, ScreenMaxHeight = 1080, _skillThievesXpLastVal = 0, _controlId = 112, _preview_level = 0, _apLastVal = 0, ScreenMaxWidth = 1920, lastRankXP = 0, _preview_rapport = 0, nextRankXP = 0, _preview_cXP = 0, _preview_clevel = 0, _skillPsijicXpLastVal = 0, _xpCompanionLastVal = 234, _xpLastVal = 0, _transmuteLastVal = 0, _coinLastVal = 362, _preview_gold = 100, _preview_transmute = 0, _tvLastVal = 0, hasHidden = F, _skillXpLastVal = 0, _preview_XP = 1, _wVoucherLastVal = 0, _eticketLastVal = 0, _preview_undaunted = 0, _preview_eticket = 0, _undauntedLastVal = 0, _preview_voucher = 0, _skillMageXpLastVal = 0, _apLastRP = 9685539}, companionId = 5, previousRapport = 4516, currentRapport = 4641, v1 = 6, gain = 125, showCFull = T, companionIcon = "/esoui/art/icons/comp_ember.dd...", companionName = [table:2]{1 = "Ember"}, rapportLevel = 6, rapportValue = 4641, rLevels = [table:3]{}, sColor = "00ff00", iSize = 18, displayMode = T, RealDiff = 125, lootEntry = [table:4]{name = "", quantity = 0, tval = 0, timestamp = 0, sval = 0}, aIndex = 1, isUpdate = F, rdIcon = "/lootdrop/textures/rapport_up...." </Locals>|r
user:/AddOns/LootDrop/LootDrop.lua:5701: in function '(anonymous)'
|caaaaaa<Locals> _ = 131737 </Locals>|r

I don't use Dustman or any addon that auto-deletes anything, I'm too wary of such functions. The closest thing I've got to an inventory addon is IsJusta Gamepad Inventory Update but I've just tested with it disabled and it was not affecting the result.

With ≤200 lockpicks I do see a total (didn't check that before my last post), but with >200 as you say, I get a lower number from the new stack only. I'm sure it wasn't doing this before High Isle and gave the full total, but I can't recall 100% as I took a short break so as not to be game-fatigued before the update, and my memory isn't that good, so might be wrong. Age...

I can't think of anything off the top of my head that players might consciously track the number of, besides lockpicks to prevent over-stacking, so there may be no need to count everything in inventory beyond those. Since I have ESO+ and a Craft Bag, I wasn't aware that the addon might function differently without it, tbh.

When I collect Lockpicks now it doesn't seem to show how many I have in total, like it does with everything else. It used to, didn't it? Just that I normally avoid collecting more than 1 stack of 200 because they're a waste of space, so I'm pretty sure it used to.