Hello, I have encountered an issue where a train will fill up with items but the mini-loader will still have an item in its hand. when another train comes along that fuel is placed in a wagon rather than the locomotive. I believe the locomotive needs say 5 fuel. the inserters both run 2 times then both pick up an item but only 1 of them is able to insert its item. the other is left in the deposit position and inserts it into the next train whether the filter is set or not.
Image for context:
https://gyazo.com/f63749754b331c3955d98af10e708463
Is there any way to fix this issue with circuits or a patch to your knowledgE?