I am not saying it is a bug propably my understanding that causes the issue

When I use the Output I can not switch on the Port pins when the value in the configuration window is set to true
only when I write a direct value such as 0x1E then I can switch RC1to RC4 on for example.
by using a C call I can switch the bits in any order and way I want it is only when I use the Output component set a complete Port and or set to True and false as the values in both modes single pin and complete Port
