We are fixing a bunch of scene-related bugs. But there are things you can check now to see if you can fix it.
Check your Load Scene behaviors - if they have refresh disabled, behaviors in your GUI objects and global behaviors don't reset. Try enabling refresh to see if that fixes your issue.
Right now, the On Scene Start event in Frame Event behaviors are pretty buggy and actually trigger in a scene when they are preloaded - this might interfere with boot up logic if you're using this feature. This has been fixed and it will be live in the next update.
Behaviors in UI and mirrored objects don't retrigger unless refresh is enabled in Load Scene behaviors.
If possible, can you share what logic is failing to run when switching scenes? Any screenshots of your code, explanations and videos will be helpful in fixing this bug.