For sure. I knew I had all the right ingredients to restore, and had kicked the tires 6 months back, but I initially copied over the wrong key. When it failed to load I had a sad moment until I realized my mistake. In such fail moments there's a flash of clarity where every process gap becomes blindingly obvious.
Sounds like the process was a bit less tested and documented than optimal. For a home system or personal desktop that's not super unusual.
You don't want to be working out your restore procedure on the fly for production servers though. ;)