Absolutely! I have the EWA mod installed. Any of your maps in the maps folder, along with this one, prevents the map editor from processing them. This means there's a conflict. I think it's due to the "Omniscient Sorcery" feature. (All other paradoxes coexist peacefully – only Grover messes things up along with any paradox).
What is the conflict? Are your scripts not working either? Or what?