welcome!
that was a bad design choice.
i opted to prevent the filelist to be sortable.
that was an improper way to avoid useless heavy actions.
i think anyway the template (or the user) should be able to decide by themselves to sort or not.
this will break a little few templates (like the default one) that don't care to clear the "sort" parameter when requiring the list.
i will fix the default template, but anyone who customized it will have to apply manually. and this sucks, but i guess it must be done.
you will have to wait for build #258 to be published.
Also is there any documentation how to use "tpl" parameter? Curious if it allows to set the template via url param.
there's not other use for the tpl parameter at the moment. It's just an incipit for what will come.