"Bake Out Materials" files generated, but not displayed in content browser UE5.3 and UE5.4

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I’m so happy to report I found a solution to this issue. The issue stems that the names generated for the textures are too long for the content browser. The solution is to rename them. We can do that with a python script you can run directly in the editor.

I have attached it below. Please note the instructions and edit the script accordingly to your own use case.

import unreal

# Function to find and rename an asset by a partial path
def rename_asset_by_partial_path(partial_path, new_name_base):
    print(f"Attempting to rename asset with partial path: {partial_path}")
    asset_registry = unreal.AssetRegistryHelpers.get_asset_registry()
    
    # Ensure assets are found before proceeding
    asset_data_list = asset_registry.get_assets_by_path('/Game/Polar/Meshes/Architecture', recursive=True)
    if not asset_data_list:
        print("No assets found in the specified path.")
        return
    
    for asset_data in asset_data_list:
        asset_path = str(asset_data.package_name) + '.' + str(asset_data.asset_name)
        print(f"Checking asset: {asset_path}")
        if partial_path in asset_path:
            print(f"Match found: {asset_path}")
            asset = asset_data.get_asset()
            if asset:
                # Get the asset path without the asset name
                path = unreal.Paths.get_path(asset.get_path_name())
                print(f"Current path: {path}")
                
                # Generate a unique name
                new_name = new_name_base
                counter = 1
                while unreal.EditorAssetLibrary.does_asset_exist(f"{path}/{new_name}"):
                    new_name = f"{new_name_base}_{counter}"
                    counter += 1
                
                # Formulate the new path
                new_asset_path = f"{path}/{new_name}"
                print(f"New asset path: {new_asset_path}")
                
                # Rename the asset
                success = unreal.EditorAssetLibrary.rename_asset(asset.get_path_name(), new_asset_path)
                
                if success:
                    print(f"Asset renamed to {new_asset_path}")
                else:
                    print(f"Failed to rename asset: {asset.get_path_name()}")
            else:
                print(f"Asset not found for partial path: {partial_path}")
        else:
            print(f"No match for: {asset_path}")

# Instructions for users:
# 1. Open the texture in Unreal Engine.
# 2. Click on Asset -> Copy Reference to get the path.
# 3. Add the paths and new names to the assets_to_rename list below.

# List of assets to rename
assets_to_rename = [
    {
        "partial_path": "M_SM_Wall_Flat_M_Wall_Inst_CAFC40234DDFA2B808FE33B499B968A9.T_M_SM_Wall_Flat_M_Wall_Inst_CAFC40234DDFA2B808FE33B499B968A9_BaseColor",
        "new_name_base": "T_Wall_Flat_BC"
    },
    {
        "partial_path": "M_SM_Wall_Flat_M_Wall_Inst_CAFC40234DDFA2B808FE33B499B968A9.T_M_SM_Wall_Flat_M_Wall_Inst_CAFC40234DDFA2B808FE33B499B968A9_Normal",
        "new_name_base": "T_Wall_Flat_Normal"
    },
    {
        "partial_path": "M_SM_Wall_Flat_M_Wall_Inst_CAFC40234DDFA2B808FE33B499B968A9.T_M_SM_Wall_Flat_M_Wall_Inst_CAFC40234DDFA2B808FE33B499B968A9_Roughness",
        "new_name_base": "T_Wall_Flat_Roughness"
    }
]

# Rename the assets
for asset_info in assets_to_rename:
    rename_asset_by_partial_path(asset_info["partial_path"], asset_info["new_name_base"])
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