attempt to perform arithmetic on a nil value

[gasune]

Not exactly sure why i got the error after pressing right arrow key until i reached the 'episodes' part of jellyfin. from the console, the problematic part seems to be here:

local function update_list()
	overlay.data = ""
	local magic_num = 29 -- const
	list_start[layer] = list_start[layer] or 1  -- this one line fixed my "attempt to perform arithmetic on a nil value" error
	if selection[layer] - list_start[layer] > magic_num then  -- errored here
		list_start[layer] = selection[layer] - magic_num
	elseif selection[layer] - list_start[layer] < 0 then
		list_start[layer] = selection[layer]
	end
	for i=list_start[layer],list_start[layer]+magic_num do
		if i > #items then break end
		local index = ""
		if items[i].IndexNumber and items[i].IsFolder == false then
			index = items[i].IndexNumber..". "
		else
			-- nothing
		end
		if i == selection[layer] then
			overlay.data = overlay.data.."{\\fs16}{\\c&HFF&}"..index..items[i].Name.."\n"
		else
			overlay.data = overlay.data.."{\\fs16}"..index..items[i].Name.."\n"
		end
	end
	overlay:update()
end

EDIT:
Seems like the amount of folders and lack of arrays in list_layer caused it to give the error.

For example:
Folder1 -> Folder2 -> Folder3 wouldn't produce the error as there are indeed 3 arrays.

Folder1 -> Folder2 -> Folder3 -> Folder4 would give a nil error since there are only 3 arrays, yet 4 layers(?)

So, by adding arrays as needed seems to have fixed it:

if #list_start < layer then table.insert(list_start, 1) end

[EmperorPenguin18]

Yes thank you for reporting this, you identified the issue exactly. I'll push a fix.