The next time this happens I'd be happy to walk my laptop the three blocks from my office to yours if it'd help. Disabling and re-enabling Siri seems to have fixed it this time.

This seems to be a significant and wide spread issue. Can anyone advise? For me, I am using Alienware 17 r5 and really miss the hand function. It's a critical tool when working fast. Thank you!

Not pleased to see that this issue has been open for a longer thread and there hasn't been any other feedback from the Adobe team than the one above?

I need to do the temporary solution "sleep" step that another person has figured out. See below

Also facing this issue. Working from a new Macbook Pro with latest updates of Adobe CC and all the zoom in functions are disabled across Photoshop, Illustrator and InDesign.

Default Zoom has been set to Z and you can't edit keyboard shortcuts to include CMD + Space zoom in option as it doesn't allow any input of CMD.

PS For some of those very angry commenters here, PLEASE will you be a little nicer to the people working at Adobe... they are human beings just like us, and it's not always an easy and quick job troubleshooting and fixing everything at the very moment it happens... each one of us has a system that is a little different from everyone else's and we, in tandem with Adobe, need to figure out what the common cause of the issue is among us.... but Adobe cannot fix it that easily if they are not able to reproduce it on their end so need our help in providing more information :) Just let's all be NICE about it...Please :) HUGS to all of you from a fellow person experiencing the same issue...

I managed to get it working again but I am not exactly sure how because I tried so many different things, including a system restart. One very important thing to note is that when it happens it happens across ALL the Adobe apps... InDesign, Photoshop, Illustrator. I have the same applications open now that I did when I was having the issue earlier. I am working on an iMac Pro with 64GB RAM, and using the latest Mac OS Mojave 10.14.2, and also the latest versions of the CC apps.

UGH!!!!! This just happened to me as well. I am crippled without it :(

I am now experiencing the joy (total sarcasm!) of losing the functionality of the space bar hand tool. WTF?! Adobe! Ever since Adobe had the brilliant (more sarcasm) idea of moving to a subscription plan to use the software, I have encountered more bugs/issues on a regular basis than I ever have before. But this one is the worst! You have taken away one of the MAIN functions that I've used since I began working in Illustrator over 20 years ago. Get your **** together Adobe and fix this ASAP!!! I'm not paying for your software to have it work sometimes!

Same here. I think it has something to do with the browser from what I've read. ADOBE - PLEASE FIX THIS

absolute .... up. Unseen level of stupidity. 20+ years and they decide to tell me how I will change my working habits.

**** these ***** I actually cannot stand them. Imagine if it was your job to literally disrupt the workflow of EVERY creative in the world.

This has to be one of the most frustrating thing I've ever come across as a designer.

Temp solution: Lock your computer/ sleep it and it WORKS as soon as you wake it back up/unlock it.

It's the weirdest thing but it works for me at least (macbook) every time.

TEMP SOLUTION: Lock your computer/ sleep it and it WORKS as soon as you wake it back up/unlock it.

It's the weirdest thing but it works for me at least every time.

Yes, this is right. Closed Safari, it can work.

Just to make sure nobody thinks this is resolved for everyone by closing browsers, closing Chrome, Safari, and every other program on my computer still DOES NOT solve the problem for me. And I do not have webroot installed. When it goes, I can shut down everything except for Illustrator, and the space bar hand tool functionality is still gone, until I completely restart my computer.

As others have mentioned, quitting all open web browsers fixed the issue. Which begs the question...why on Earth should Safari being open have any effect on Illustrator??

Quiting Chrome resolve the issue, thanks God!!!

Space Bar not working in Illustrator as hand tool. Very annoying. D stopped working as default swatch as well....

THIS IS NOT RESOLVED! I have restarted, I have closed and reopened the app... still not working.