<standard> cannot remove watchstones from inventory

Hi, standard player here. (played expedition though)

I received basic watchstones(red yellow greeen blue balls) from Zana without acknowledging there are additional watchstones in new remove-only tab, and put them in the empty slots in left top of atlas. After that, I found remove-only tab with old atlas items and put out basic watchstones again... and I cannot remove them now.
they are stuck in my inventory.

Please solve this duplication problem. Thank you

throw it out in any location
maps , acts...