Hi, I figure out it. I have same problem but with houdini. Unreal usd only read uvs as “texCoord2f[] primvars:st” and maya export default uvs as “texCoord2f[] primvars:map1”. You need only create new uv set and name it “st” (you must remeber that unreal read only one uv set so if you have model with multipel uv set it only take one with name “st”) and then you can export animation with correct uvs. Also i want ask if someone know how to export usd animation from houdini to unreal. I create simpel scene with houdini and make alembic form it and then create usda in maya and houdini and find one thing
maya export usd with “int[] primvars:st:indices.timeSamples = {
1: [0, 1, 2, 3, 3, 2, 4, 5, 5, 4, 6, 7, 8, 9, 1, 0, 10, 0, 3, 11, 1, 12, 13, 2],
}”
and animation works with correct uvs in unreal
but houdini export “int[] primvars:st:indices = None”
and i have animation but empty uvs.
When i change only this one line in usd exported from houdini everthing works correctly.