It's not a bug. It's documented clearly in the manual:
http://wiki.mikrotik.com/wiki/Manual:Qu ... ple_Queues
If all properties of a queue have default values (no set limits, queue type is default), and queue has no children, then it is not actually created. This way, for exanple, creation of global-total queues can be avoided if only upload/download limitation is used.
You need to set one non-default property for a simple queue to be created. The simplest thing to do is to set limit-at to the physical interface speed (100M or 1G).
I don't have a 750G, i don't see that option in the simple queue interface where do i set it?
i changed one of the upload limits, then only uploads started showing, then i made a change on the dl limits, then that started showing?
?