ES had a bug where a syntax error in a query would send it in a weird state that would then give wrong answers to all queries until the process got rebooted. Wh

ES had a bug where a syntax error in a query would send it in a weird state that would then give wrong answers to all queries until the process got rebooted. Which of course isn't fast. I reported the issue, and thankfully I changed job and never had to deal with ES again. After a few years they contacted me to ask if the issue was still there, I said I had no idea. I have no idea if the issue is still there.