Glitch when duplicating Calendar Events

[LeisaRobson]

Hi there, I have had a few instances when duplicating a calendar event (say for a course topic which runs from Monday to Friday, where the start and finish times are excelarated by one hour.  For example

* Monday 9am to 4pm is duplicated for extra four days, then Tuesday start time automatically changes to 10am to 5pm, Wednesday 11am to 6pm, etc.

I then need to go back and adjust the start and finish times.

Does anyone know why this may be occurring and have any suggestions here?

Thank you

Leisa