This has happened before, but I was simply able to reload a previous backup of my project. This time however, I do not have a recent enough backup, and I would rather try to actually solve this issue.
I was able to isolate the issue being caused by the Character Movement Component of my Player Blueprint. This crash only happens if the default Pawn Class is my Player Blueprint.
I have temporarily disabled a lot of functions that either run as a loop, or modify some value of the Character Movement Component. This began to happen right after I made a UI widget that got the current WalkSpeed of the Player. Even after disabling and deleting that widget, the issue still persisted.
The Call Stack of the crash message is:
Any help is greatly appreciated!