Hi,
Thank you for your kind words!
Usually combining two separate plugin features doesn’t end well – just like in this case. I have only seen a very few “infinite loader” features work properly. Usually they are custom coded to do specific queries on their own, or they simply load the next page and does not account for the current page query URL (which holds the search information). When that happens, they just try to load the next page, without the search paramaters, causing this issue.
Unfortunately from the search plugin perspective we can’t do anything about it as it is beyond our control.