Am I crazy? I don't see this mentioned anywhere

There's a large gap between my ability to see a contact on the waterfall and the game allowing me to designate it as a contact. Meaning, even though there's clearly a line on the screen nothing happens when I hit the designate button. This got a lot "worse" when I installed LWAMI and its improved sensors.

I can get around the problem by switching the autocrew on for a few seconds, as the game will pick up the line as a contact. However, this leads to problem 2:

Even if I switch off the autocrew, I don't get DEMON information for any contacts that were marked by the crew. The end result is that the workaround isn't much of a workaround.