How come some items are missing from resp?

[Donut]

Hey all,

I am trying to work on a small projects trying to retrieve items from a users inv but for whatever reason some items are missing from public view and via API. However, when you go to trade offers the items in questions do show up.

 

I am using getPartnerInventoryContents resp is:

Quote

Five-SeveN | Coolant (Five-SeveN | Coolant (Minimal Wear))
AWP | Black Nile (AWP | Black Nile (Factory New))
Sticker | Chinggis Warriors (Holo) | Austin 2025 (Sticker | Chinggis Warriors (Holo) | Austin 2025)
Tec-9 | Raw Ceramic (Tec-9 | Raw Ceramic (Field-Tested))
USP-S | Ticket to Hell (USP-S | Ticket to Hell (Field-Tested))
Nova | Dark Sigil (Nova | Dark Sigil (Field-Tested))
SSG 08 | Necropos (SSG 08 | Necropos (Well-Worn))
Tec-9 | VariCamo (Tec-9 | VariCamo (Field-Tested))
P250 | Facility Draft (P250 | Facility Draft (Field-Tested))
P250 | Sand Dune (P250 | Sand Dune (Field-Tested))
UMP-45 | Facility Dark (UMP-45 | Facility Dark (Field-Tested))
SG 553 | Anodized Navy (SG 553 | Anodized Navy (Factory New))
PP-Bizon | Night Ops (PP-Bizon | Night Ops (Field-Tested))
UMP-45 | Facility Dark (UMP-45 | Facility Dark (Factory New))
XM1014 | Blue Spruce (XM1014 | Blue Spruce (Field-Tested))
Galil AR | Cold Fusion (Galil AR | Cold Fusion (Field-Tested))
M4A4 | Converter (M4A4 | Converter (Minimal Wear))

But if you got to trade offer all items show up:

 

The AK-47 Rev would be an example as a missing item from public inventory/API response. 

 

What would cause Valve from hiding said items? (They are not trade blocked, and they are tradeable and sellable on the marketplace. 

Thanks for your time and help!

 

Edit:

Looks like using community.getUserInventoryContents instead of trade.getPartnerInventoryContents worked. Can disregard this post

Edited 12 hours ago by Donut