Yes, mine also went blank in GCkey at a point and kept blank until I got the new request. I didn't worry about it at the time because I've seen other people with the same situation and their medical get extended because of the extension policy for in-land applicants. Although my previous medical was only more than a year old, it had some problems (not a smooth pass) and I think that may be the reason they say it's not extendable.Looking at you situation I'm suspecting I'll get Medical request as well. I did mine in 2019 and they passed it initially in the tracker and gc key but now it's been blank in GCkey for a month. Did you go through something similar?