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Forums › Forums › Search & Filter Pro › Is there a limit to the number of filters allowed?
The problem is most likely to be that the PHP variable max_input_vars is too low on your server (by default PHP has this set at 1000, but WordPress often needs way more, like 5000-10000, sometimes a lot more). You will need to refer to your host, or their online help/documentation/knowledge base on how to change this. You can check what it is set at here: