When using the timeline addon and editing an existing item in the timeline, clicking on the edit icon triggers a modal window but the position of the modal window is partially outside the bounds of the overall window. It's not possible to scroll the modal window or move it, making some of the fields impossible to edit.
The workaround seems to be to close the window and do it again, on the second load it positions correctly.
See initial load here: 
See second load here: 
Hello Vince Murphy
Apology for the inconvenience. Please share a screencast of your issue to understand it better. Record it and share it through any drive link here. I will check it.
Best regards
Here's a recording of the issue. When you first click on the timeline item the modal window is too low and you cannot move it. Closing the item and reopening it is a workaround as the second time the window appears correctly.
https://www.loom.com/share/1405e8c5621442778fcf99b1272f386c
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