I really love the WP Project Manager plugin. However, it turns out the fronend extension is in a conflict with the WPML Multilingual CMS plugin.
More specifically, I believe there is an AJAX issue, because only the AJAX features of the frontend (adding a project, todo, marking a todo as done) do not work when WPML plugin is activated.
AFAIK, some plugins have special extension for working with WPML:
– BuddyPress + BuddyPress Multilngual;
– WooCommerce + WooCommerce Multilingual;
WPML is the most widely used multi-language plugin, so may be resolving the conflict between WP Project Manager and WPML would be really valuable for the customers.