When using transports to collect minerals Gallicite is unfortunately the last mineral to be collected if the stockpile exceeds the cargo capacity. Would be nice if there could be a changeable priority list which minerals should be loaded first.
It will be good, meanwhile, I sorted in this way: Order to load mineral Gallicite in your case then load all minerals.
Aurora will process your request filling Gallicite first and then will process orders to load minerals following the stockpile queue.
Keeping in mind the above, you can already use your custom load queue pretty much everywhere saving the order and reusing it once needed for other TF.
I myself always not in need of one or 2 minerals so I adjust the queue using this simple trick.
I hope this helps if Steve will not fix or implement this issue.