I had a bug where at some point I could no longer invite Felicity to bed, which meant I could no longer set the twins as a wakeup call nor sleep with both. This was towards the end of the current version, so I had all the interactions unlocked and it didn't fix itself when the version concluded. It's not really an issue, since she doesn't yet have the Lust feature, so it didn't matter for easy Lust gain, plus I've set the game aside for later whenever it's next updated. Just wanted to let it be known.
I know at certain points in the story certain people aren't available in the hotel or for specific actions, but it shouldn't have happened at all with Felicity.