Comment 35 for bug 1846940

I have narrowed it down to the following:
If a form has more than one control and in the underlying sheet column width in any one column is set to different than default, then all controls on the form start (not always immediately) to refresh (redraw) in a continuous loop affecting overall performance.

Steps to reproduce the bug:
1.Create new sheet
2.Add two controls to the form
3.Resize a few columns on the sheet

If all columns have default width this bug will not manifest itself.
If there is one control on the form, this bug will not manifest itself.

Reproducibility is a bit sketchy, since sometimes it starts to continuously refresh immediately and sometimes it takes a few seconds to catch on.