I downloaded the simple warehouse example scene and everything: …/…/…/Environments/Simple_Warehouse/warehouse_with_forklifts.usd
I get the error on apriltags
2023-04-26 13:03:17 [115,117ms] [Error] [omni.hydra] Failed to create MDL shade node for prim ‘/World/Apriltags/Looks/AprilTag_ID_02/Shader’. Unsupported identifiers.
2023-04-26 13:03:17 [115,737ms] [Error] [omni.hydra] Failed to create MDL shade node for prim ‘/World/Apriltags/Looks/AprilTag_ID_0/Shader’. Unsupported identifiers.
2023-04-26 13:03:18 [116,137ms] [Error] [omni.hydra] Failed to create MDL shade node for prim ‘/World/Apriltags/Looks/AprilTag_ID_01/Shader’. Unsupported identifiers.