I am encountering a problem adding pins to a block. Oddly this is only affecting the right hand side of the block (the output side).
I can add pins (Add Pin>type the pin name> click on the block at the particular location) on the left hand side but the pins refuse to be placed on the right. Oddly on the right hand side of the block there is a pin with no name attribute shown, which i have attemped unsuccessfully to delete. How this came to be here, i do not know (i am a newbie), but i suspect this may be preventing the placement of pins.
How do i remove the unidentified pins?
How do i interrogate the block to identify why i can't attach pins?
Any help would be appreciated