OK, SO i am having this issue as well (v4.22.2)
I loaded the project with the logs and it says:
[2019.05.26-19.23.37:279][ 0]LogLinker: Warning: Can’t find file ‘/Game/Dynamic/Character/BP_PlayerCharacter’
[2019.05.26-19.23.37:281][ 0]LogLinker: Warning: Can’t find file for asset ‘/Game/Dynamic/Character/BP_PlayerCharacter’ while loading NULL.
I have the file name in that location, spelled EXACTLY the same (well, with *.uasset extension of course).
I have tried to rename the file, load the project. I get an expected CDO error. So i go through my project, rename the file in the editor, and re-cast everywhere that the BP_Character is referenced, so I can hit PLAY and it works. but whenever i reload my project, i get either the CDO error, or it hangs on load.
Sorry to rez an old thread, but I figured this is the issue, so…shrug. Any help in ANY direction is appreciated.
BTW: Here is my project that is causing the issues:
https://github.com/Udemy-Courses-JShaw/Section05_Challenge-Rooms/tree/bf6a306ec2c0f129273b892496756c9ced6e7c8a