Error The highlighted field is required when uploading item supplier via CI

Hi all,

has anyone ever across an error when uploading item supplier price via CI even though all required field already filled with the respective values?

My user got these error :

#1 - The highlighted field is required. You must enter a value for it before proceeding.{PBC_PRCH_ITEM_ATTR_CI.PUR_ITM_ATTR_CF(2).INV_ITEM_ID} (15,54)

#2 - Error saving Component Interface. {PBC_PRCH_ITEM_ATTR_CI} (91,37)

#3 - Error saving Component Interface. {PBC_PRCH_ITEM_ATTR_CI

but if I check the CI the INV_ITEM_ID already filled with the right value of item ID .
Am I missing something?