I'm sorry you're having troubles.
So the scene indication system Saddog has made is still a bit buggy and I haven't overhauled the system yet because I keep seeing new code for the system the Saddog has added with each update. Such as Green borders for Love scenes, Red borders for Corruptions scenes, and Blue for NTR scenes. But it's not completed. So I'm just waiting to see where Saddog is going with it first, so I don't have to drastically change my own code later.
But I'll go over each issue and explain what's going on as best I can. I hope it helps.
1 screen shot there is no event with Cassandra and Frank but the button is green.
There is an event there, but it is an NTR event with Frank and Cassandra. If you want to see it then you need to make sure Cassandra's relationship is 5 or less. And completed Cassandra's First Basement event.
2 screen shot same event everyday why? is pointless to show the basement again and again.
This is there so people can see it again if they want to. Like I said in an earlier post, I working on a better way to watch repeat scenes. I have a few ideas I'm working on, but it will be a few releases down the road most likely.
3 screen shot nothing in basement this time but the button is green (there is an event )but never see.
So that green indicator is saying there are variations to Nicole's basement scenes you haven't seen yet. Which makes scene as you haven't seen the Bunny or Angel outfits yet. But you do start the events in the living room where your screenshot is, so that's good.
Also Alexis dark path in secret place never occur
To see this scene you have to let Alexis and Davide be friends on her first date. In the save you share with me, they are not friends so it locks that path I'm afraid. I will make a button in my cheat menu in the phone that will switch between them being friends and not friends for the next mod update.
basement the events with outfits bunny angel never show.
When you go to the basement at 11pm with Nicole (Started in the living room at 10pm, then again at 11pm.) your Love Points need to be higher than your corruption points with her and then choose to not drug her. Then you'll see the bunny outfit. Do it again and you'll see the red angel lingerie. If you've already done this with the corruption outfits, which in the save you shared you have, then doing it again will let you see Love path versions for all 4 outfits. And if you make your Corruption points higher now, then you can see all 4 outfits with their Corruption paths dialogues.
I was able to get all the scenes to work with your save, minus the Alexis ones because they were not friends in the save.
If you have any more issues, just let me know.
And I mentioned earlier, I'll release an update to the mod soon that has the option to change if Alexis and Davide are friends in the cheat menu. And I'll add a little dialogue box that warns the user that choosing for them to not befriends closes off the Darker Paths scenes with her later.