Hi Max,
Does this only happen with one wire, and does it happen every time you restart? Are you able to reproduce this in a new project, or does it only happen your current project? If you’re able to provide consistent reproduction steps for us, that would be super helpful. If you can’t, would you mind uploading your project (or a test project if you can repro in a new project) somewhere and getting me a download link? Thanks!
You also mention a bug with an unresolved compiler error when using an event dispatcher in a UMG widget. Is that what you’re experiencing? If you remove widget with event dispatcher, does this wire disconnection issue stop occurring? I wasn’t able to find any information regarding that bug in our system or an AnswerHub post about it, so I’m sorta flying blind on that one at moment.