machine startup

Hi experts. There’s a small thing that puzzles me a bit. Every time I start a cut, I have to start it twice. The first time, it starts running without the plasma. If I stop and start it again, the plasma cutter actually fires up. Is that normal?

Check your ground, ground to the part not the table, also sounds like you running out of air pressure put a gauges at the plasma to see if your dropping when your torch engages using old air hose got me the first time