Alamo

My 2018 GMC DENALI intermittently starts via the remote using my key fob. If I start it via my key in the ignition and then immediately try to remote start it soon after it starts once or twice and then nothing other than my lights blink once. It seems like this issue began right after I had opened my hood to check fluid levels. The hood is shut completely and I have no codes or service indicator. Also it's not in the valet mode. I call my dealer and they said they never heard of this happening.