Suddenly I'm no longer able to resume screens I have running on a remote machine. I've never had this happen in a few years of running this machine. I don't know that it's connected but I did run
yum update last night.
I can see the screens listed and they're properly detached:
18709.bungee (Detached) 5462.mc (Detached) 7045.ftb (Detached)
Yet when I try to resume any of them, all I get is the cursor on the next line. Any attempt to exit or detach fails and I have no choice but to close my ssh connection entirely.
I have some services running in those screens that I need to gracefully shutdown before I try rebooting the server itself.
Is there any known cause of this? Or any way for me to get into a screen?