Hi
Past couple of days, I have had an effect where the entire page 'jumps' up/down by one line at a time very frequently.
I believe the cause is an item in the page headers showing a list of machines 2 or 3 at a time.
When the list contents change from (say) 2 items to 3 items, the page adjusts to accomodate the new list size.It looks like the element showing this list is a series of images (maybe?), but of different sizes, thus causing the jumping. Everything is effected,missing or selecting wrong options from a drop dow etc.
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See images attached.