Problem applying equipment profile to sequence

I cannot find anything on this by searching. I created two equipment profiles, one for narrowband and one for broadband. I have two sequence files; a narrowband and a broadband (and others). If I open the narrowband sequence file and apply the narrowband equipment profile to it for any reason then open the broadband sequence file and save it the narrowband equipment profile is automatically applied to the sequence. It appears whatever the last equipment profile was applied to any sequence if I open any other sequence and simply save it that profile is applied to it as well. Is this normal behavior?

Thanks
Stan