I recently made the migration from M1 to M2 and I'm having a problem that I can not solve.
I would like you to help me make a more complete debug.
I use the Infortis Ultimo theme that adds a MegaMenu extension that is managed from category editing.
I'm not saving any of the options in this menu except one or two irrelevant.
I would like to know what is happening when I send the POST to try to solve the problem but I can not do a debug to show me sql or php errors.