Hi,
Thank you very much for the details and the access, it helped a lot.
I have managed to find the issue, it was related to a certain Elementor feature, and the conflict was triggered by the plugin in combination with the theme. I have resolved the issue, by making a direct change to one of the search plugin files – it should be active now.
I will make sure to include this fix in the upcoming release, so you don’t have to worry about it.