Replaced the ignition on my avalanche, used a key reprogrammed to program the keys, it worked on the first key but when I did the second key it cleared the first one and the theft light came back on. So I did it again, the theft light went off, the key worked, the fob worked but now the key only works when it wants to. I can use the fob to start the truck if the key doesn’t work. Any suggestions on what it might be?