I opened a green chest, selected a logistics group and the game crashed after clicking on an item in the Filter Helper GUI.

Error while running event FilterHelper::on_gui_click (ID 1)
FilterHelper/filter_updaters.lua:123: attempt to index local 'found_section' (a nil value)
stack traceback:
FilterHelper/filter_updaters.lua:123: in function <FilterHelper/filter_updaters.lua:115>
(...tail calls...)
FilterHelper/control.lua:544: in function <FilterHelper/control.lua:522>

Filter Helper currently only works with the default unnamed group, as it's not clear how to decide on which group to operate on.
I didn't expect the game allow such "default" group to not be present, but it does, and even allows multiple of them.

I could make it a UI to select the group (will take a while) or always interact with the top group, which also makes sense.