Static Mesh imported from USD file has empty UV channel

When importing static mesh from USD file then it has the wrong amount of UV channels. Selecting a UV channel shows an empty area in the viewport.

Regression: YES - not reproduced in 4.25.3 production

Update:
In order for this to work the models st primvars must be changes from float2 to texCoord2f. After that UV channels should import properly

Precondition

• Have a project with USD importer plugin enabled. Have the files sync from: //UE4/Main/Sandbox/QASourceAssets/Studio/USD/Import/

Repro

1. Import into Level USD file with Basic options - [ [Link Removed] ]
   • [file] = //UE4/Main/Sandbox/QASourceAssets/Studio/USD/Import/Mesh/topo_wasp.usda
2. Import into Level USD file
   • [file] = //UE4/Main/Sandbox/QASourceAssets/Studio/USD/Import/Mesh/update/topo_wasp.usda
   • Use same options
3. Edit the asset SM_Wasp_wasp from the Content Browser
4. In the top Toolbar of the Static Mesh editor, click on the UV dropdown
5. Select UV channel 0

Actual result
UV is shown empty. There are only 1 UV channel.
[Link Removed]

Expected result
UV match expected result (see attachments). There are 3 UV channels.
[Link Removed]

[UE-23848] Bug Status

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