Question: Convert to atomic: disappeared from the menu. How to I get it back?

Converting index expressions to atomic worked.
I then tried to uncheck atomic in the context menu which did not work.

I opened a new worksheet to try it again but now conversion to atomic disappeared from the menu

no_conv_to_atomic.mw

 

A restart of Maple did not bring convert to atomic back. Any idea why this happened and how to restore Maple?

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