I inserted an Atomos Master Caddy into the Shogun Flame and the thing got stuck halfway. The reason turned out to be a mounting screw that was slightly protruding.
I could not get the caddy out without breaking either the Shogun or the caddy. All I could do was move the thing back and forth a fraction of an inch. I eventually freed it without damaging my Shogun and here is how I did it. The caddy was lost, though.
The SSD is fine and working well in another Caddy again.