I’m not sure why they would say that, there isn’t any code inside of this theme that would interrupt it’s functionality. All the functionality is controlled by the Slider itself, there’s no code added that can control or alter how it works.
My theory: I think they have dealt with so many different people (mostly from Themeforest) using so many different themes (that have added extra functionality) that they probably assumed this was one of them and gave you a basic response that they always use when issues come up. It’s not just them, a lot of Plugin developers do this when they’re unable to figure out what’s going on……but a lot of the time the issue comes from their own plugin. It could be an issue related to WordPress itself…there was an update recently, so it could very well be a possibility that they need to update their code.
I have this theme too, and have checked the code in every file and there is nothing that would affect the functionality. You can also check yourself to see, there is no mentioning of this plugin in any of the files.
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