Locate the config.yml configuration file in the CraftEngine plugin folder
Set resource-pack.map-plugin-compatibility.enable to true
Change resource-pack.map-plugin-compatibility.path to ../BlueMap/packs/craftengine_resource_pack.zip
Change chunk-system.restore-vanilla-blocks-on-chunk-unload to false
Run the command /ce reload all
Run the command /bluemap purge <map> to clear all worlds rendered by BlueMap that contain custom blocks. For more details, please refer to the BlueMap official documentation