Select and drag in Ilustrator 2020....

[richardesignerUK]

When I select and drag an object in Illustrator I'm not seeing the guides at the edges of the objects (see video below). So if I'm alt dragging to duplicate an object on top of another I can't see the edge of the object I'm currently clicked on. Very annoying! Is this a new feature in 2020? How can I get back the old way of seeing the edges of the objects? There doesn't seem to be anything that works in Prefs. 

[Jeff Witchel, ACI]

Please try the follow:

Look under the View menu and choose "Show Edges" and also "Show Bounding Box."

Hope this help!

[richardesignerUK]

They're both already switched on 😞

[Kurt Gold · Accepted solution]

In the Illustrator Preferences > Performance there is an option called Real-Time Drawing and Editing.

You can turn it off.

[richardesignerUK]

OMG! I literally just when 'woo hoo!' That definitely fixed my problem! Thank you so much. You've just made my day 1000 times easier! 

[michelew83603738]

There are also Smart Guides that you may want on.

[Kurt Gold]

In case you want to enjoy real-time drawing and just need a toggle, you could keep the preference option turned on and just temporarily switch to CPU preview (View menu).

There is already a default shortcut to do that (Cmd-E, at least in my non-English version of Illustrator).