All textures are missing for all wires. The only things that have correct images are the two ingots and that is it. Here is what my log says for all 1.17.1 builds.

[21:47:45] [Worker-Main-7/WARN]: Exception loading blockstate definition: rswires:blockstates/red_alloy_wire.json: java.io.FileNotFoundException: rswires:blockstates/red_alloy_wire.json [21:47:45] [Worker-Main-7/WARN]: Exception loading blockstate definition: 'rswires:blockstates/red_alloy_wire.json' missing model for variant: 'rswires:red_alloy_wire#down=true,east=true,north=true,powered=false,south=true,up=true,west=false' [21:47:45] [Worker-Main-7/WARN]: Exception loading blockstate definition: 'rswires:blockstates/red_alloy_wire.json' missing model for variant: 'rswires:red_alloy_wire#down=false,east=false,north=true,powered=false,south=false,up=false,west=false' [21:47:45] [Worker-Main-7/WARN]: Exception loading blockstate definition: 'rswires:blockstates/red_alloy_wire.json' missing model for variant: 'rswires:red_alloy_wire#down=true,east=true,north=true,powered=false,south=true,up=false,west=false' [21:47:45] [Worker-Main-7/WARN]: Exception loading blockstate definition: 'rswires:blockstates/red_alloy_wire.json' missing model for variant: 'rswires:red_alloy_wire#down=true,east=true,north=true,powered=false,south=false,up=false,west=false'....

I saw the post about Indium and it works for me.