How to Avoid December Softlock
There is a part where Kris and another character are walking down a long hallway and pressing buttons, these buttons open the gates in front of you and them so you can continue forward.
If you stand too close to the final gate then the other character will disappear and you wont be able to move anymore (the Softlock).
Stay on your last button/just generally don’t go right next to your final gate and you’ll probably be fine.
If you get softlocked you’ll have to redo a long cutscene’d section and a mini-boss which I had to do 4 times before figuring it out so Maybe Don’t Be Me!