Programmer for GS here, thank you so much for this report. Laying out the steps to reproduce it helped tremendously!!
I was able to confirm the error and it'll be added to our hotfix!
Lol. My dad would always have me help him bugfix his programs because I have a habit of finding niche bugs that are not obvious, but sometimes they can ruin everything.
Once, he was making a slots game, and I was able to break the menu to allow me to bet negative money, meaning losing actually generated cash.