PPG Production Planner/Scheduler interview questions

Phone screen with HR. In person interview with a Planner, Plant Manager and HR Manager. Nice people was told I would hear back by the end of the week. 2 weeks later and a follow up and I was ghosted. I was told to follow up with a review on Glassdoor after the interview. The position is gone so the job has been filled, but disappointing that there was no follow up.