@ I don’t see anything obviously wrong with your screenshots (besides the fact that’s it’s not working of course). Check to make sure ‘Virtual Texturing’ is enabled in your project settings. If you open the UDIM texture in Unreal, do you see all the UDIM pages in the texture window? What about if you make a simple material that samples the texture, and offset the default UVs by 1.0 in either X or Y direction, can you get that to show a different UDIM page?