ABAQUS/Explicit can not add new History Output

When I want to set a new History Output for an explicit dynamic model, I click Create, and a small "Create History" dialog window appears. However, when I click its Continue button, the window disappears, and the software does nothing—there’s no message in the command window either. Despite that, the job can still run after submission. If anyone is familiar with this issue, I’d appreciate an explanation of how to properly set History Output. I’m using Abaqus 2018. Thank you very much!