First check you have the following Arnold core : >= 7.2.1.0 (tested on maya 2022, 2023 and 2024 both Win/Linux). Then with Maya we have to edit the Maya.env file for both Windows and Linux installations. MTOA_TEMPLATES_PATH = xxx\rtoa\DCCs\Maya\ae MAYA_CUSTOM_TEMPLATE_PATH = xxx\rtoa\DCCs\Maya\aexml ARNOLD_PLUGIN_PATH = xxx\rtoa\bin Just let the above maya vars point to the correct[…]