I have this:
It works and the door rotates, but the problem is that it snaps instead of rotating smoothly.
This is the timeline:
Try it with float track.(0 to 90 or another values)
Just made this video for you. https://youtu.be/v3tPHbe_uBA It is still uploading so a little patience (about 35 minutes from the post time). It covers how to make one door opening using a timeline and how to trigger it with its own collision box in a single BP. It works everywhere with any rotation and without having to create trigger boxes outside of the BP. While there are 1000’s of way to make a door open…this is a really good way to go about it.