How Do You Refresh on a Mac?
Of course, this applies to the majority of Mac web browsers, too.
If you find that Command+R isn’t refreshing a page, it could be due to conflicting shortcuts.

Go toSystem Preferences>Keyboard>Shortcutsto verify the shortcut is assigned correctly.
In this case, youll want to try a hard refresh.
Where Is the Refresh Button on a Mac?

In addition to thecmd+rshortcut, most Mac browsers include a refresh button in their toolbar.
Youll typically only see this on compatible MacBook Air and MacBook Pro models.
Otherwise, it does nothing.

How Do I Refresh My Mac Desktop?
Fortunately, there is a workaround to this issue.
If that doesnt work, you could useCommand+Option+Escape(ESC) to Force Quit the app.

FAQ
How you refresh your email inbox depends on your email client.
Or, select theMailboxtab and clickGet New Mail.
There’s also a keyboard shortcut: pressShift + Command + Nto refresh your inbox.

If you’re using Gmail, select theRefreshbutton just below the Search Mail bar.
First, try toggling off iMessage on your iPhone and your Mac.
On your iPhone, go toSettings>Messagesand toggle off iMessage.
On your Mac, open theMessagesapp, go toPreferences, and then choose your account and sign out.
Next, sign back in on both devices and see if this solves the problem.
Another troubleshooting step: On your iPhone, go toSettings>Messages>Send & Receive.
To force iPhoto to refresh, try restarting your Mac.
Alternatively, quit iPhoto, then typeActivity Monitorinto Spotlight Search and open Activity Monitor.
Search the termphoto, then look for an iCloud Photos process.
Select theXat the top to quit the process.
When you open iPhoto again, the app should refresh the photostream.