So, in my project, I have a rigged model that I'm attempting to animate. However whenever I make a new 3d viewport (like when switching from default to animation mode), that viewport won't show the armature of the model. I ended up joining a new viewport with the only one that did show the armature, and now it won't show on that viewport and I don't know what to do. I haven't hidden the armature or anything, so I imagine the issue has to do with a 3D viewport setting I'm not experienced enough to know about. Any advice?
Also, it's worth noting that when I create new bones, they are visible. Only the existing bones can't be seen.