Weird Error: Icon image is not valid

[daftpunknl]

Icon Test Started
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SMALL ICON SIZE 16x16
LARGE ICON SIZE 32x32

--- Creating Small ImageList
Small ImageList Created

--- Creating Large ImageList
Large ImageList Created

--- Assigning Small ImageList
Small ImageList Assigned

--- Assigning Large ImageList
Large ImageList Assigned

--- Sharing Small ImageList
Small ImageList Shared

--- Sharing Large ImageList
Large ImageList Shared

--- Assigning Small ImageList to ListView
Small ImageList Assigned to ListView

--- Assigning Large ImageList to ListView
Large ImageList Assigned to ListView