Im using the stm32 programmer with stlink and yes it will open without anything connected to it. I finally figured it out, had to do with the drone board. Thanks for the quick response
I see this with a V2 up-to-date-with Programmer 2.9 under Ubuntu 18.04 LTS when the target processor (H7B3 in this case) can't immediately be grabbed by the ST-LINK. Click "Connect" and Programmer just crashes. It didn't used to work this way with older Programmer versions but ST helpfully inserted this bug in their never-ending rush to add features at the cost of reliability and robustness.
I finally have it going. It was the way the drone 1 board was designed. I had to have the USB, the stlink and an ext power supply or battery connected. Sent from my Galaxy