Multitouch sends nil actions

Bugs
#1

I experience a problem with multitouch on android device. Cannot say exactly what to do to replicate it but as I’m getting an on_input message I try to iterate through the touches. Once in a while the whole action.touch table is nil. What would cause that? Should that be possible?
It’s of course simple to fix not throwing errors but I’m afraid I’m losing important touch data (eg. a release after a press)

06-05 14:38:44.521   871   897 E defold  : ERROR:SCRIPT: lux/input/gestures.lua:121: bad argument #1 to 'ipairs' (table expected, got nil)
06-05 14:38:44.521   871   897 E defold  : stack traceback:
06-05 14:38:44.521   871   897 E defold  : 	[C]: in function 'ipairs'
06-05 14:38:44.521   871   897 E defold  : 	lux/input/gestures.lua:121: in function 'on_input'
06-05 14:38:44.521   871   897 E defold  : 	client/player_controller.script:133: in function <client/player_controller.script:128>
...
06-05 14:38:44.521   871   897 E defold  : ERROR:SCRIPT: lux/ui/button.lua:312: bad argument #1 to 'ipairs' (table expected, got nil)
06-05 14:38:44.521   871   897 E defold  : stack traceback:
06-05 14:38:44.521   871   897 E defold  : 	[C]: in function 'ipairs'
06-05 14:38:44.521   871   897 E defold  : 	lux/ui/button.lua:312: in function 'on_input'
06-05 14:38:44.521   871   897 E defold  : 	lux/ui/button.lua:267: in function 'batch_on_input'

Code for gestures.lua on_input() (similar for button.lua):

if action_id ~= m_touch then return end
for i,touch in ipairs(action.touch) do -- failing line
	result = handle_touch(touch)
	if result ~= nil then
		table.insert(actions, result)
	end
end
return actions
#2

Hmm, @sven any idea what’s happening here?

@AJirenius sanity check: You’re not using the same action_id for anything other than multi touch right? And m_touch is never nil?

#3

Thats correct. Not using it anywhere else. Only happens once in a while but of course is a small concern for locking things.