The port forwarding still in a mess RAX80

I bought the RAX80 in 4th Oct because my R7000 with problem can not fix it.

Why do I choice the RAX80 because the good experience of using R7000.

But it is a nightmare. the list for port forwarding always abnormal.

When new a item and tell me it duplicate. I am very sure i disable the UPnP and USB readyshare uncheck in every item.

but my port 80 still can not forward to my NAS.

When i add a custom service, sometime it will show the same item with two in list.

Sometimes I add a new port forwarding, it not show in the list ??

This is so easy function. why such many issue?

Does the function coding by clearner or high school student ??

Some guys graduated from  Double E or Computer science can't fix it ??