Thanks.
Was this on the recent version 1.14? You focused only on Kovit? I've also tried this method an hour ago but it doesn't seem to work, there might have been another trigger somewhere
Viewing post in Version 1.14 and Future Update Schedule comments
Unfortunately it was on the first build of the game but yes, I focused only on Kovit. I tried it now on the the 1.14 build and it works for me, I also remember talking to him at every occasion I got since the hospital became available because I was curious of what he was going to tell me, maybe it was that! Did you perhaps unlocked Dr. Ken?