Crash on startup after update from 4.22 to 4.25.3

[dukedukes]

Fixed this by following these instructions

Project Upgraded from 4.27 to UE5 Instantly Crashing

Adding my experience to this thread as well. 4.26->5.0.0. We had a very large number of blueprint structs in our project, many of which were nested structs. Many of our game’s blueprint actors, data-tables, anim blueprints all had references to these structs which made the prospect of going through and recreating all of them from scratch or manually updating the references not really a feasible option. What I did that worked was the following: go through all of our structs one by one and re…

I had some other issues aside from structs, some BP’s crashed while compiling. I disabled the problematic code to get around this issue. I also wiped my config directory temporarily, this at least helped me get into the editor where I narrowed down which BP’s/structs were causing the crashes.