Outlook 365 - Attachments not available when email opened

My wife's laptop on the same network as my PC and using the same version of Outlook 365 displays the paperclip indicating the message has an attached file. But when the message file is opened the attached file is no longer displayed (and available to be opened) above the email message as it is on my version and was on her laptop until today.

I assume she has inadvertently clicked on something that stops attachments being available when a message containing one is opened.

Highlighting the message with the attachment and clicking File and Save attachments allows the attachment to be downloaded.

Any ideas as to what has changed? Settings seem the same as mine but obviously something is different.

Thanks

My wife found the answer herself.

Open an email with an attachment. At the top of the screen are the various tabs and below that a box showing details of the email - date received, subject, sender, etc. Below that are the names of the attachments which you can click to open.

At the far right of the email details box is a small up or down arrow. Clicking on this reduces or increases the size of this box. Above is a tiny paper clip icon and number. Clicking on this opens and closes the box containing the attachments.

Obvious once you realise it's there!