I believe I know what you mean but also I don't know if we're supposed to keep these comments spoiler free?
But yes, I've done both of those. Even went back and double checked to see if I missed anything.
Either I've hit a glitch or I really have just missed something obvious. Either way, I'll be more likely to catch it on my next playthrough. And I enjoyed this game enough that I'm certain I will want to replay it.