Hi,
When scrolling through the scheduler pro, events sometimes don't render. I've reproduced this in the big data set demo (https://www.bryntum.com/examples/scheduler-pro/bigdataset/), here's a video and a screenshot:
https://drive.google.com/file/d/1loC0zgetV8ghx8Pw7YoO7iTL-J0An1Gh/view?usp=sharing
I think this was introduced in either 4.1.2 or 4.1.3, as I couldn't reproduce it in our environment on 4.1.1.
Thanks
Matt Morris