Enervise Inc. recently found someone to fill a $75,000-a-year job. The new hire said he would move to Cincinnati and report to orientation at 8 a.m. on his first Monday. The day before, he emailed to say he had changed his mind.

Taken aback, Aaron Dorfman, the recruiting manager for the facility-services and plumbing company, emailed back. No response. “I called, too, and it was just crickets,” he said.

Add another head-scratching new feature to the post-Covid employment landscape: A job isn’t filled until the new hire actually shows up for work.