Hi,
I've tested some item import / editing fromd diablo GoG to devilutionX, and it works fine to devilutionX 1.5 on my PC.
But i have 1.5.1 on android and there thing goes weirs, some item became unidentified (suspected dupe) each new game if they're on char or inventory (but fine in the stash) If i put oil on them, each new game they're taking theyr basic stats again.
Some diseapear, the one that were modified, they're fine in the stash, but disapear if put on the ground.

The part about becoming unidentified and loosing oil stats sounds a bit odd, but maybe you are transfering them to Diablo from Hellfire? Doing so will revert effects that are not available in Diablo (like oils).

Regarding the item import/editing, it's possible that some items may behave unexpectedly if they are not within the normal parameters of the game. In 1.5.1 we've made improvements to enhance stability and address potential issues with unexpected values.

But to say for sure I would need more details about the items.

Here my stash and char, hellfire MP :

https://mega.nz/folder/W40kiK4a#Fv3bc--at9pxW0nw1Dt0tg

How i did : First create MP char on diablo gog, importe item with bobafett trainer, move the char to devilution, then convert them on hellfire with devilution.
Some of the item that are blocked "unidentified" are from my legit char, event ring so with no other modification.
some cheated itm that disapear now, are from my old character too. I played with some of then normaly some days ago.

All (as far as i tested) are still working normaly on my computer on devilutionx 1.5

I haven't looked at it in detail yet. But I think some of it is because manipulation (bobafett works by overwriting game memory) like this would work locally but cause dsync since they do not transfer over the network in the memory format, this was adjusted so that they appear the same for all players.

Ok
But this deosn't explain why some of my legit item i played normaly became unidendified or why all my stash including the cheated item works fine on my PC in version 1.5 ?

Can't you read? He told you 1.5.1 has anticheat, 1.5 doesn't

Ok thanks.