Related to viewtopic.php?f=44&t=16304&sid=483e9e20db3afa2ba039fdec1dd5b33c
Events disappear when loading new events in 4.0.8. In attachments I've provided a test case to reproduce the issue.
In my test data I'm using tree data but I don't think that's the root of the problem. I'm able to reproduce it in one of our other scheduler implementations which doesn't have any tree data.. however I was not able to reproduce a test case for it
Steps:
npm install
npm start
Click "Shift next"
Click "Shift previous"
Now notice the event disappeared.
In console log you can see the assignment record points to a resource that no longer exists.