Time & date picker.

Hello,

i having some trouble with a spreadsheet i have made and was wondering if some on could help. I have been stuck with it for the past week and not getting any where

The Problem:

I am having trouble with the microsoft date & time picker.
Once you open the spreadsheet and click enable editing, enable content you will see the broken time and date pickers under D & G. But if you scroll down until they are out of view and then back up they will reappear working.

any suggestions?

I will attach the sheet to this post.

many thanks