You've most likely done something out of order. After a quick test I was able to complete a Mary playthough with no issues.
Make sure to check the Relationships tab to ensure you're following the right path. If you want to romance Mary, make sure she comes over at the end of Day 1 + 2 rather than sleeping alone at the hotel.
You're not able to leave Sutton with Russ, but you will meet back up with him after any solo ending (assuming you've either slept with him or hooked him up with Abigail).
There are good endings with Russ depending on whether you've slept with him or got him to hook up with Abigail. No matter what you should see these endings even if you had to call the sister.
I don't remember him ever offering to drive the MC to the wedding but that may have been something I put in and forgot. I'll check it over when I get the chance.
Actually, after further testing, this does work as intended. Granted it is a bit convoluted.
Meet with Annabell in the church during Day 1 and talk to her 3 times.
Meet with her on Day 2 and help her with the care packages. Pick any option apart from 'stand up for yourself'
Meet her on Day 3
Have her father help with the shower
Meanwhile, check in with Chance to get the ID. After meeting with Chance, make sure to go back to Annabell so you can get the photo
Talk to Annabell on Day 5. She'll want to meet during the End of the Day.
Make sure to talk to Chance before the end of Day 6 to get the ID.
Talk to Annabell on Day 6.
She will come around on the End of Day 6. If you don't have the the ID, she will stay with you. Otherwise, if you have the ID or are letting the two band members stay with you, you can take her to the show.
You're free to reference Stuck in Sutton however you like.
As for the image, IDK why it's doing that but it can be temperamental. It seems to work on the downloadable version. Then again it's not too big of a deal as it's just a poster I made up and doesn't affect the actual game.
Those are all the current endings apart from bad endings and the two joke endings (Lottery and the Long Lost Father ending). The former has a 1 in 250 chance of triggering, whereas the Long Lost Father requires some rather specific things and to stumble upon the 'father' event at the Pink Lounge. Neither of these unlock any items.
Also, not a specific ending, but if you go down Russ' path and learn to drive stick, you can unlock the Futo NT-R Model, which allows you to buy the Futo NT-R car ($2000 instead of $3000) on any playthrough.
Currently you can only achieve endings on your own or with Annabell if you're following the full corruption path where she stays with you. Other characters will get their endings at v1.0.
If you're on your own, you can reach the escort ending and the stripper ending if you've performed a certain number of tricks/strip shows.
The two new endings relate to an event during Day 6.
For specific things, you'll have to look at the guides, but the 'Help' tab on the menu will give you some general tips and the 'Relationships' tab will walk you through the relationships in game.
