Titan Shell

The Titan Shell is a glitch that was discovered by BT Meme, on September 10th, 2020. This phenomena has been observed only once. This next passage is written by Meme and details his discovery of this glitch. 
I was trying to kill a 12-Meter Titan, when I was grabbed and attempted to escape by shifting into a Fortifier in the Titan's hand. I knew this wouldn't work, it was more just for fun. To my surprise, I got kicked from the server right when I shifted. The error message simply said "Flying is not enabled on this server". 
When I rejoined, I was at spawn. I went back to the place I'd been killed and thought I'd found the 12-Meter Titan standing on the ground (it has previously been on a roof). It was standing completely motionless, which I found odd, but quickly attempted to kill the thing anyway. I was surprised to have my blade deflected by hardened skin. Not bothering to look at the name tag, I assumed it was a Cognizant Titan and attacked it again.
When I did kill it, the kill message said "You were paid $0.0 for killing [ Fortifier ] Meme". 
Somehow, I must've shifted a split second before the server kicked me, detaching me from my Titan body and rendering it impossible to get back in. 
I do not know if this is possible with other Titans, or other Titan forms. I plan on attempting to replicate it in the future.