The recent updates of DeI have caused some new incompatibilities with this mod but they have been largely exceeded. A small "drawback" still remains with the launch of the pilum, which can be circumvented as follows: since the "Shield Wall" and the "Shield Protection" can not be activated after the complete launch of the pila, after having launched the first ones but before the unit has finished all the bullets, select the "Toggle Melee Mode" button and fight close together. In this way, all three walls can still be activated.
Alternatively, if you do not want to control all your units individually to see when they are about to run out of pilums, you can set them up right away on melee combat (by "Toggle Melee Mode" button). This will prevent the units from launching and then exhausting their own pilums, so they will not have problems forming even with these walls.