understood, this does work out of the box but changing around the attributes a lot without updating the function library’s to deal with the attributes might cause some problems in case by case situations, do you want to put a breakpoint on BeginPlay of the inventoryitem where the items itemdata-> attributes is replaced by the attributes and check its functioning properly? Thats where i would begin. also check you updated the function AttributeIsSet (or something along those lines) in the JcFunctionlibrary,
i will be on my work station on Wednesday to provide more support on attributes, so please stand by!
Also take note that when you drop it in the screen it is a new object, perhaps it is your debugger that is having issues? Rather then using the print text debugger do you want to check the itemdata by picking it up again, and then putting it in the top left corner of the inventory, then search for ‘playerinventory’ and have a look at the array itemslots in the details panel.
im still not entirely sure how you have your system rigged up, but i will make a best practices video regarding attributes!