I thought you were using MZ not MV or are you using MZ with MV graphics?
Viewing post in Battles don't work after the update
I've had the old version of the plugin since about June. everything worked great. a couple of days ago I found out that the plugin was being updated and downloaded the new version because it included the influence of the landscape. I replaced it with the old one and this happened.
I haven't changed any settings yet. I just launched the game with the new version of the plugin. but changing the settings did not help