categories and reminder symbols disappeared in calendar since SP?

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Anybody else experiencing ths:

Normally if you give an event a category and view the event in month
view there is a coloured bullet corresponding to the colour of the
category. This no longer appears. (A similar indicator in Tasks has
also vanished). Also if an event had a reminder, when you viewed it in
day view it would have a small bell symbol. I am no longer seeing this
either. All other functionality seems fine. Strange and mildly annoying.

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