Just discovered this issue today. I have a lot of work to do in Illustrator. We need this fixed ASAP.

How is this stiiiiillll not working?! This is honestly driving me crazy! Come on guys please fix this!!!

Adobe is turning into Microsoft. They release an "UPDATE" with new features, and break other things that worked in a previous version. Then the response on their forums boards is non-existent.

This is still not working in Illustrator CC. Come on Adobe, we rely on you to keep the functions working that we rely on every day!

Same here... this is in Indesign, Photoshop and Illustrator.

I also have other issues in Indesign:

* shift+drag (to keep object in straight line) - doesn't work
* shift+alt + drag (to duplicate an object and keep it in straight line) - doesn't work
* cmd+alt+shift + pull corner (to scale something) - doesn't work

I can't work like this!!!

I tried all the tips below, but nothing worked... Only thing I didn't try is to change the Indesign cache and preferences folder, because I can't find them... can someone tell me where they are? ;)

Glad I am not the only one. Still an issue.

This issue is slowly driving me insane.

On mac, force quit all apps (except ai), including finder. This worked for me.

I'm still battling with this. Have tried quitting all programmes mentioned. Have reset preferences across CS - still nothing. Please help?

I still have this problem. C'mon guys, it's been weeks.

"mac settings in Security & Privacy, then in Privacy -> Accessibility allowed Ai to control my computer" did not work for me.

Jean solved the problem for my Mac. Here's the . comment for ref:
"...I went in my mac settings in Security & Privacy, then in Privacy -> Accessibility allowed Ai to control my computer..."

Not a fix, but try holding Alt+Spacebar

Was the issue fixed? I'm having it now.

Please please please fix this!!! I'm on a PC. Quitting Chrome does not work for me.

Just spoke to Adobe - the quick hand tool is a preferences conflict. if you rename the adobe Indesign preferences folder and the cache folder, it works.

Hello, I was experiencing the same issue. The thing that fixed it for me was to uninstall Chrome completely. I'm still trying to figure out how to run them both with no issues, but as of this post I've had to stop using Chrome.

Hi this has stopped happening on my Mac now - can you close this issue so I don't get all of the notifications?

I got a better solution, which solves the actual "problem"

I think it isn't a direct software problem : I went in my mac settings in Security & Privacy, then in Privacy -> Accessibility allowed Ai to control my computer.

Ai just needs the control over your mac when there's a conflict with another Program concerning the Spcacebar. Then it won't happen again :)

Hope it helped you guys

I just bought annual subscription and install the photoshop and illustrator. I am using iMac 2018 5k 27inch with 64RAM. I regret this quick hand tool is not working. I don't know what to say...

i resolved this problem today.
In my case i have installed the program Exodus. (Crypto Wallet)
If it is open in the background, the cmd & space doesn't work in Photoshop, Indesign and Illustrator.
If I close exodus, cmd & space works fine again.
Maybe you have another software installed, wich uses cmd&space for anything....
Try it out and I hope your day will be much better now! ;-)