Broken link in SimRF general amplifier on opening the model.

Hello,

I use the SimRF library and whenever I open the model, there are always two or three amplifiers that throw an error saying "Physical Conserving port pin is not connected to any other physical blocks. Connect this port to another physical block." When I look under mask of the erroneous block, I see that a connection is missing. This happens in a few blocks only and there are other instances of same block which do not throw errors (they have no missing connections).I have attached the image of mask and the erroneous block.

I use the circuit envelope library. Please help me solve this issue as it is disturbing to insert new amplifier blocks every time I open a model.

Thanks in advance!