I cannot seem to get our instance of Youtrack to handle plain text searches. I tried the "Text Index" fix but that didnt work. Is there something you can do on the back end.
Seems similar to post ID 205796329 (-Is-full-text-search-not-working-)
The known location of our instance is at: http://issues.rsilogistics.com:8080 let me know if you need something different and i will see if i can track it down