I just upgraded to CC2019 and same thing happend here - spacebar doesn't work! Any ideas apart from webroot, which I don't have?

geoparkin , thanks for the advice but that doesn't work for me. Nothing does. I've deleted my preferences, deleted the app and reloaded, restarted the computer, shut it down completely. Nothing.

With more careful observations, it's not exactly the hand tool stuck: I may use the selection tool to click on an object and nothing happens. So I click again, then go to move it an inch and it seems as if I'm clicking and dragging, and the cursor races acroos the screen, selecting everything in its path to the infinite edges of the illustrator (where no man nor woman has gone before), where no workspace or object exists. So, I recenter. Double click something, and suddenly things are flying again.

My new suspicion is that it's operating so so so slowly that even my most patient clicks are not read until they are a cluster that together do something I did not want them to ever do.

Does this make any sense at all? Does illustrator take up more RAM when operating than photo shop or indesign? Maybe I just have a memory problem...

I've had this issue occur on a number of occasions, and it's certainly not a problem that's specific to MacBooks or High Sierra, as I experienced it with earlier versions of the OS, and my set up is iMac/Wacom Cintiq. Extremely frustrating, especially when you're in the flow and working to a tight deadline. The only reliable fix I've found is a re-start, after which things usually revert back to normal. Until the next time it happens, of course...

I have this same issue. Really slows be down. What is the fix besides a full restart? Super frustrating.

Shutdown Webroot! This will restore function to the spacebars tool toggle

OMG... now me too. Was fine fine fine... then just STOPPED!

Made me think I accidentally hit the wrong key combo somewhere to make it just stop so suddenly, but I've tried everything to get it back and nothing.

HOW FRUSTRATING!

FIX the spacebar PAN tool in Illustrator! I don't want to use another key for panning..

And please for the love of all that is beautiful do not allow updates to make changes to our hotkeys and interface settings.

Broken for me as well. Annoying as it really slows you down workwise :(

I'm not sure what action fixed this as I just tried it today and didn't restart my Mac or anything it just start working for Illustrator and Photoshop too. So thanks good lord hahahahaha finally! Alleluia :D

I resolved this issue by restarting my mac in safe mode (hold down shift after start up boom and release when the apple logo appears) then open illustrator, check space bar quick hand tool works. quite illustrator then restart mac again normally. When I opened illustrator the hand tool (space bar) was working again :-)

This just happened to me this morning. I have updated to the latest Illustrator CC2019 and the spacebar still doesn't work as a quick hand tool.

I agree with others, it is NOT RESOLVED, this bug still live in CC2017 too, after safari close handtool arise for spacebar. Do you think it is normal?

My space bar doesn't work even when I close Chrome. I have no idea what to do.

This happened as soon as my IT department installed Webroot on my mac. If you click the green "W" logo at the top of your screen and click "Pause Secure Keyboard Entry" that fixes it.... at least that's what worked for me and my team.

Yes this is so frustrating as pressing spacebar we don't have any option for hand tool anymore. Give me a Hand :D this suck *** as I'm using Photoshop 2019 and Illustrator 2019 and it does not work on both.

It makes our professional work triple the time..... O M G please fix this!

p.s. I'm using Mac just so u know I'm not sure about Windows

Ahhh! Why is this happening! Messing up my workflow and speed. Does anyone have a fix?

Just had my daily hand tool failure, and I then tried shutting down every other running program one by one, except for Illustrator, to see if anything else could be causing the problem. This solved nothing, space bar hand tool still broken. Restarting computer again...

Not working, even though I quitted from Safari.

Illustrator 23.0
OSX 10.13.6

The culprit for me was Webroot for Mac. Shutting down Webroot solved the problem.

Driving me crazy!!!!! Totally breaks the workflow and just is absolutely frustrating.