I am sorry to hear this is happening, can you help with some details?
- What browser are you working in when this happens?
- Are you seeing any errrors?
Do you have another browser you could test in? This is a quick way to help narrow down where the issue is coming from!
Thanks for the screenshot, what version of Intenet Explorer are you working in here?
Do you have another browser on your computer? It looks like this might be isolated to IE so you should be able to schedule in another browser for the time being.